Our story begins at the end of an investigation, as the members of London's Peculiar Crimes Unit race to catch a killer near London Bridge Station in the rain, not realising that they're about to cause a bizarre accident just yards away from the crime scene.

Our story begins at the end of an investigation, as the members of London's Peculiar Crimes Unit race to catch a killer near London Bridge Station in the rain, not realising that they're about to cause a bizarre accident just yards away from the crime scene.