A detective from Tokyo scours London for his missing brother, who's been involved with the Yakuza and accused of murder.

When a single mother suffers a nervous breakdown, she is suspected of child abuse and her child is taken away. Her mental suffering escalates as she succumbs to her darkest fantasies.

Losing his son Tom in a hit and run triggers violent emotions in Anthony, whose body begins to transform. When the driver who killed Tom reappears, Anthony mutates into a mass of metal - a human weapon fuelled by an uncontrollable rage.