The Devil's Advocate (1997) ending / spoiler
Al Pacino is Satan and Keanu Reeves is in fact one of Satan's many sons. Pacino reveals to Reeves that he needs Reeves to father the anti-christ. Reeve's wife committs suicide after she is raped by Pacino. Reeves voluntarily commits suicide at the end, greatly despairing his unholy father, but gets brought back to life at the decision he made near the beginning, giving him (but also Satan) a second chance.
Submitted by Renegade