An old-school detective and his headstrong new partner discover a connection between two unusually horrific murders, and realise they are on the trail of a serial killer who deems his victims to be each guilty of one of the seven deadly sins. However, the longer the cops pursue the murderer, the ever more twisted and disturbing the slayings become. David Fincher's thriller, starring Brad Pitt, Morgan Freeman, Gwyneth Paltrow and Kevin Spacey