It has been nearly three decades since Cillian Murphy's character appeared in a hospital gown, yet the so-called “rage” virus doesn’t seem to be going away, and with Britain essentially separated from Europe, there are few places that haven’t experienced its effects. The island of Lindisfarne, shielded by the tides, is one such safe place, and it's home to "Spike" (Alfie Williams), his father (Aaron Taylor-Johnson), and his ailing mother (Jodie Comer). A significant occasion arises when “Spike” accompanies his dad to the mainland for his first kill. This is notable not only because he’s just twelve years old but also because he's never encountered anything beyond his isolated surroundings. He hasn't seen those who are infected either. The journey proves quite eventful, and a family friend mentions a doctor “Kelson” (Ralph Fiennes) who might be able to assist his mother, whose condition is worsening. As a result, the now more assertive "Spike" conceives of a risky scheme to see if he can improve her health. While the film adheres to familiar zombie tropes, Alfie Williams delivers a commendable performance and Jodie Comer portrays a well-equipped but confused character. However, the rest of it feels rather uninspired. There’s plenty of action, though that was also present in “Shaun of the Dead” (2004) – at least that film had humor. This one is simply intense, featuring psychological commentary and some oddly integrated footage from older Robin Hood or Olivier films that seem to hint at both the cyclical nature of history and this plot itself. It’s true that it's only part one of a trilogy, and Fiennes, with his iodine markings, does introduce a touch of peculiar curiosity about what might follow, but I was genuinely let down by this over-promoted horror film, which often felt like a series of disconnected episodes.

Source on TMDB