Accused of the ritualistic murder of his best friend, a vice detective bent on finding the truth is plunged into Hell when he goes undercover and discovers that demons might be real.
George is a small-time crook just out of prison who discovers his tough-guy image is out of date. Reduced to working as a minder/driver for high class call girl Simone, he has to agree when she asks him to find a young colleague from her King's Cross days. That's when George's troubles just start.
When Gabriel and Emilie meet by chance, he offers her a ride, and they spend the evening talking, laughing and getting along famously. At the end of the night, Emilie declines Gabriel's offer of "a kiss without consequences". Emilie admonishes him that the kiss could have unexpected consequences, and tells him a story, unfolding in flashbacks, about the impossibility of indulging your desires without affecting someone else's life.
After a break-in at their house, a couple gets help from one of the cops that answered their call. He helps them install the security system, and begins dropping by on short notice and unofficial patrol, and spends a lot of time discussing the couple's problems with the wife. The husband begins wondering if they're getting too much help.