Nicci (Sharon Horgan) and Andrew (Michael Sheen) cuddle their daughter at home
Series review

Best Interests

2023 · Created by Jack Thorne · Series · 1h 00m

In a sentenceFour hours in which every person on screen is right, and it still ends up in court

Marnie (Niamh Moriarty) is a teenager with a form of muscular dystrophy that has taken her breathing and most of her movement. Her consultant, Samantha (Noma Dumezweni), tells the family that further treatment is no longer in Marnie’s best interests and that the hospital intends to stop it. Her mother Nicci (Sharon Horgan) refuses, flatly. Her father Andrew (Michael Sheen) listens, and is not sure. Her sister Katie (Alison Oliver) watches both of them and is asked by nobody. The first episode moves between the ward, the family house with its hoist and ramp, and the years before the decline, when Marnie was funny and loud and bossing everyone around her. By its close, the question of what should happen to her is heading for a courtroom.

Plays from YouTube when you press play; nothing loads from them until then.

Fi1m review

Jack Thorne’s four-part drama about parents fighting a hospital over their daughter’s care is as fair as it is painful, and Michael Sheen and Sharon Horgan are both quietly superb. It repeats itself in the middle, and Marnie is argued about more than she is seen.

Jack Thorne’s Best Interests is four hour-long episodes about one decision, and it does not pretend the decision is easy for anybody. Marnie (Niamh Moriarty) is a teenager with a form of muscular dystrophy. Her doctors, led by Samantha (Noma Dumezweni), have concluded that keeping her alive is no longer the kind thing, and they say so to her parents in a small room with a box of tissues on the table. Her mother Nicci (Sharon Horgan) will not hear it. Her father Andrew (Michael Sheen) hears it. That is the drama: not a family against a hospital, but a marriage pulled in two directions, with a judge to settle it.

It is good, and we recommend it to anyone who can bear the subject, which is a real condition on the recommendation. Thorne has decided that nobody here will be the villain, and he holds to that for four hours. The doctors are tired and decent. The lawyers are competent. Pippa Haywood’s Judge Spottiswood runs her court without a raised voice. Michael Keillor directs it all at a steady pace, and the series is at its best when it simply lets two people who love the same child fail to agree about her.

Sheen plays Andrew small. He fidgets with his cuffs, agrees with whoever spoke last, and keeps trying to make a joke land in rooms where jokes do not land. Horgan goes the other way: Nicci has become the fight, and the series is honest that this has cost her the ability to hear anything else. Both of them are doing the kind of work that does not look like work. The surprise is Alison Oliver as Katie, the sibling who has spent years being the child who did not need anything, and who has one scene in a car park that we have thought about since.

David Raedeker shoots the hospital in flat, even light and the flashbacks in something warmer and lower, so that Marnie’s past looks like a place and her present looks like a corridor. Dominic Strevens cuts between the two so that each clinical phrase at the hearing is answered by a picture of the girl it describes. Alison Butler’s design of the family house is right in the small things: the hoist over the bed, the ramp, the clutter that a long illness builds up in a hallway. Sheena Napier puts Nicci in the same few jumpers across what are plainly weeks, and we noticed before we understood why.

The flashbacks are where the series got us. Marnie, well enough to talk, is sharp and bossy and funny about her own body, and Moriarty plays her as a person rather than a case. We cried in the first episode, properly, at a scene of her teasing her father about his taste in music, and then we noticed the cut back to the ward had been timed to make us, and we resented it slightly. The series does this more than once. It is affecting, and it knows exactly how.

The middle two episodes are the problem. The same argument is staged in a kitchen, then a car, then a hospital corridor, then a solicitor’s office, and the words change less than the rooms do. Thorne’s fairness becomes a method: everyone is given a speech, and by the third episode we could hear the speeches coming. Marnie herself, once the hearing starts, is talked about far more than she is on screen, and a series this careful about who gets a voice ought to have noticed that it had taken hers away.

Against other British dramas about the health service and the courts, this one is unusually patient and unusually unwilling to pick a side, and we think that is the right way to make it. It is also why it sags. Thorne has written a case rather than a plot, and a case has a shape that resists being interesting for four hours.

It is a 15, and it earns the certificate with nothing but talk. Watch it in two sittings rather than four; the argument carries better when you have not had a week to forget which side you were on. And do not start it late on a night when there are children asleep upstairs, because you will go and look at them, and then you will not sleep.

Critical consensus AI synthesised

78
Positive
7
Mixed
0
Negative
0

The reviews are united, and warmly so. Every critic finds the series emotionally affecting and, more unusually, fair: the praise keeps returning to how even-handedly Jack Thorne’s script treats a family dilemma with no right answer, giving sympathy to everyone in it. The performances draw the most attention, with Michael Sheen and Sharon Horgan named in nearly every review, Sheen’s restraint in particular, and Alison Oliver singled out by more than one critic as the discovery of the piece.

The reservations are small and scattered rather than shared. The Guardian notes some repetition and slack across the run, and Paste, otherwise the most enthusiastic, concedes the story can tip into the overwrought. The Evening Standard feels Marnie herself is underused, though The i Paper credits the flashbacks with giving her a life beyond her illness. The spread is narrow, with no dissenters, and the lower scores come from early reviews that judged only the opening episode.

The AV Club
14 February 2025 · B+ · Tim Lowery
83

The critic calls the series a top-shelf tearjerker that maintains empathy for everyone despite its heartbreaking story. They single out the powerful performances of Sharon Horgan, Michael Sheen, and Alison Oliver.

Read the full review →
Evening Standard
9 June 2023 · ★★★★ · Daniel Keane
80

Keane finds the series emotionally mature and deeply affecting in its treatment of a difficult moral dilemma. He singles out Alison Oliver’s performance as a breath of fresh air, while noting that Marnie is underused.

Read the full review →
The Guardian
18 June 2023 · ★★★★ · Barbara Ellen
80

Ellen finds the drama highly charged and emotionally affecting, despite some repetition and slack. She singles out Michael Sheen’s subtle performance and Jack Thorne’s ability to make the characters’ heartbreak speak.

Read the full review →
Radio Times
6 June 2023 · James Hibbs
70*

The review finds the drama tactful in its handling of delicate subject matter. It singles out the two powerhouse performances as a particular strength.

Read the full review →
The i Paper
12 June 2023 · Emily Baker
70*

Baker finds the opening episode emotionally powerful and praises its even-handed handling of an agonising ethical conflict. She singles out the flashbacks that show Marnie’s joy and inner life beyond her illness.

Read the full review →
Paste
14 February 2025 · 9.0/10 · Lacy Baugher Milas
90

The critic calls the series gutting, powerful, and necessary for its empathetic, even-handed treatment of an impossible family crisis. She especially praises the performances of Sharon Horgan and Michael Sheen, while noting that the story can be overwrought.

Read the full review →

Straight answers AI written, from our review

Is Best Interests worth watching?
Best Interests is worth watching for anyone who can bear four hours on whether a hospital should stop treating a teenage girl, and we scored it 76. Jack Thorne refuses to make anyone the villain, and Michael Sheen and Sharon Horgan are quietly superb as parents pulled apart by the decision. The middle two episodes repeat the same argument in different rooms, which is the main reservation.
How long is Best Interests, and what is it rated?
Best Interests has episodes of about 1h 00m. It is a drama series.
Where can I watch Best Interests in Canada?
Best Interests is streaming on Amazon Prime Video in Canada. Availability is checked daily; the links above go straight to each service.
How violent or frightening is Best Interests, and is it suitable for children?
Best Interests is a UK 15 with no violence and nothing frightening in the usual sense; it earns its certificate with talk alone, about a child's death and the parents arguing over it. It is not for children, and parents of young children may find it harder than they expect. Nothing on screen is graphic.
How does Best Interests compare to Amour?
Best Interests and Amour are both about watching someone you love decline, but Thorne's series is a courtroom case with doctors, lawyers and two parents who disagree, while Haneke's film is a husband and wife alone in one flat. Amour is the stricter and more affecting of the two; Best Interests is warmer, fairer and baggier, and easier to sit through in company.
What should I watch after Best Interests?
After Best Interests, try Amour (2012, Fi1m 88): Haneke on a husband nursing his wife, shot in one flat and almost no music. Then Kramer vs. Kramer (1979, Fi1m 82): A custody fight where both parents are right, and the court is no help; and Help (2021, Fi1m 66): Thorne again, with Jodie Comer in a care home during the first lockdown; angrier.

Cast

If you liked this, try…

  1. The Children Act (2017) · not reviewed yetA judge decides a boy’s treatment; the law seen from the bench rather than the bed.

  2. Amour (2012, Fi1m 88)Haneke on a husband nursing his wife, shot in one flat and almost no music.

  3. Kramer vs. Kramer (1979, Fi1m 82)A custody fight where both parents are right, and the court is no help.

  4. Help (2021, Fi1m 66)Thorne again, with Jodie Comer in a care home during the first lockdown; angrier.

  5. The Sea Inside (2004) · not reviewed yetJavier Bardem as a man asking to die; Spain’s version of the same argument.

Free account

Know what to watch tonight

Two lists that know where things are streaming, collections you can share, your own score beside ours, and Discover that remembers what you have seen.

  • Want to see, sorted by what is streaming now
  • Seen, with your score out of ten
  • No adverts, ever