On the surface, the movie asks whether there's an afterlife and something "more" than what we get here on earth, which is always an interesting discussion. But in reality, it's about apologizing and forgiving, a message that's undermined by the fact that the characters are forced to apologize and forgive to save their own lives.
Shocking car crash. A young girl is killed, offscreen. Ghosts/scary stuff. Characters die, dead bodies. Hospital scenes. Needle puncture, with spot of blood. Abortion discussed. Attempt at strangling with plastic bag.
A sex scene with a woman top of a man, but no graphic nudity. A second couple kisses; he takes her bra off from behind, and they're shown lying naked together under a blanket. Sexy/sweaty dancing. Innuendo. Joke about a "testicular exam."
One use of "f--k," a few uses of "s--t," plus "d--k," "hell," "stupid," "goddamn," and "Jesus" and "Jesus Christ" (as an exclamation). A middle-finger gesture.
Heavy drinking at a party. Drinks shown in a few other scenes. Mention of how medical students get the "best drugs."