Blackout (2008 American film)

Blackout is a 2008 horror film based on the eponymous novel by Italian novelist Gianluca Morozzi, and directed by Rigoberto Castaeda. Blackout revolves around three people, one of whom is a serial killer, who are trapped in an elevator after a power blackout.

It is slowly revealed that one of the men is suffering from losing his wife. The other man had just experienced a domestic disturbance with his girlfriends father. The woman, covered in blood, just left a hospital visiting her grandmother.The movie opens with Karl visiting his wifes grave. His young daughter shows up with Karls sisterinlaw and they play Marco Polo for a while. He asks his sisterinlaw to care for his daughter so he can take care of something. He drives home where the blackout traps him. During flashbacks we see him taking photos of a woman whom he later buys a drink and takes to his car. ........

Source: Wikipedia