Murphy is an American living in Paris who enters a highly sexually and emotionally charged relationship with the unstable Electra. Unaware of the seismic effect it will have on their relationship, they invite their pretty neighbor into their bed.
Lui, a struggling author with a heart condition, and his wife Elle, a retired psychiatrist, find their idyllic life shattered when Elle begins to succumb to the effects of dementia.
Events over the course of one traumatic night in Paris unfold in reverse-chronological order as the beautiful Alex is brutally raped and beaten by a stranger in the underpass. Her boyfriend and ex-lover take matters into their own hands by hiring two criminals to help them find the rapist so that they can exact revenge. A simultaneously beautiful and terrible examination of the destructive nature of cause and effect, and how time destroys everything.