Radio Times

Episode 1/6

Determined to protect his friends and family from vicious alter ego Mr Hyde, Tom Jackman quit his job and left home. Convinced he was having an affair, wife Claire hired a private investigator to follow him. But six months on, she's left more confused than ever when surveillance photographs prove her suspicions groundless. Tom, however, fears that incriminating shots of his dark half must exist, and visits the detective agency to learn more.

RT Choice (David Butcher, 16 June 2007)

It's [the] interplay between [Jackman and Hyde] that works best, mostly thanks to predictably good work from James Nesbitt. The two sides of the same man leave each other messages on a dictaphone, they agree truces, they end up paying twice for the same prostitute, and so on. For a while you wonder if there's the makings of a sharp satire on relationships here - The Odd Couple with a dash of gore. But the other side of the script, the sci-fi horror story with a conspiracy angle, wins out.

The result is watchable, though with moments that are shockingly awkward and/or unconvincing - Gina Bellman is badly miscast as Jackman's wife. But Nesbitt and his eerie black contact lenses save the day.

Episode 2/6

After regaining consciousness in a restaurant where Hyde was clearly dining with a female companion, Tom is desperate to find out about his alter ego's private life. But when he turns to psychiatric nurse Katherine for support, he's unprepared for her response. Meanwhile, Tom's best friend Peter Syme accompanies Tom and his children on a trip to the zoo. But what's intended to be a fun day out soon becomes a terrifying ordeal…

RT Choice (Jack Seale, 23 June 2007)

It takes time to get the rhythm of this split-personality chiller, but expunge any desire to make sense of it and you can enjoy one of the maddest shows ever to pose as a primetime drama.

[In part two], lurid images and uncontrollably camp dialogue flash past in a collection of stylised moments that are often very funny, sometimes on purpose. If an alsatian in a cocktail dress had unicycled past, I wouldn't have batted an eyelid.

Episode 3/6

Tom is frantic, certain that he's losing control to the ever more powerful Hyde. Chained up, he's getting wild and is desperate not to fall asleep because Hyde has promised the worst possible thing will happen if he does. As Tom starts to doubt the few people he's trusted so far, a century-old plan is coming to fruition.

RT Choice (Jack Seale, 30 June 2007)

Part three of this oh-so-modern version of Stevenson's tale, and for the first time it's really clear why Steven Moffat is on writing duties. His trademarks are ingenious plotting (as seen in the recent Doctor Who episode Blink) and rattling, showy dialogue (Coupling), but up to now Jekyll's story has been confounding and its script overcooked.

[This episode], however, is a stormer. James Nesbitt and Gina Bellman make [the battle of wits between Hyde and Jackman's wife] crackle, while Moffat finally turns Jackman's battle with his other self into gripping drama.

Episode 4/6

A bright, cheery and quite normal Tom Jackman meets Claire for the first time in this flashback episode. But there's a great sense of doom as we know what this couple is going to face. In the present day, Tom is locked in a casket and Claire is demanding answers from Syme. But Miranda thinks she just might have the explanation for the mystery that surrounds Jackman's past.

Episode 5/6

The modern-day version of Jekyll and Hyde steps back into the past of 1886 as Robert Louis Stevenson himself (guest star Mark Gatiss) looks for an ending to his story. Meanwhile in 2007, a pathetic and chained Tom Jackman is released from his casket - or is he? Hyde has plenty to say and none of it's good, either for Tom or himself.

RT Choice (Jack Seale, 21 July 2007)

Say what you like about Jekyll - it's confusing, it's overacted, they keep hiring people to play Americans who can't do the accent - but it sure isn't run-of-the-mill. [This] episode is a major mindbender.

In the sinister boffins' lab, Hyde has completely taken Tom Jackman over. After several minutes of James Nesbitt goofing about, there's a welcome twist - Hyde is tortured by flashes of Jackman's life, rather than the other way round - and perhaps even a point to all the shocks and theatrics. With Gina Bellman to the fore, it seems Jekyll might just be a love story - a dark, psychosexual labyrinth of a love story, but one that'll have you keen to see [the] doubtless spectacular finale.

Episode 6/6

A mercenary hunts for Hyde, while Syme visits a secret gentleman's club with ominously strong protection. Claire fears for her children's safety as Sophia prepares to tell her the truth about Tom's condition. As the story concludes, there are secrets upon secrets - and now it's a question of who will survive.

RT Choice (David Butcher, 28 July 2007)

There are times when tonight's final episode is so daft it feels like a comedy sketch. It's down to writer Steven Moffat's fondness for ludicrous set pieces Scalextric plotting. With six episodes to fill, even Moffat's imagination got tired.

But through the fog of silliness, emoting and bad accents, something rather special shines through, an elaborate fairy tale about the superhuman power of love.