Roberto, a drummer in a rock band, keeps receiving weird phone calls and being followed by a mysterious man. One night he manages to catch up with his persecutor and tries to get him to talk but in the ensuing struggle he accidentally stabs him. He runs away, but he understands his troubles have just begun when the following day he receives an envelope with photos of him killing the man. Someone is killing all his friends and trying to frame him for the murders...
Insomnia spreads in a small town, causing fear and panic. As the situation becomes dire, two couples find salvation on an abandoned ranch, but as nefarious characters descend upon the land, claiming it as their own, and chaos ensues.
The story follows a recent divorcee who spends her daily commute fantasizing about a seemingly perfect couple who live in a house that her train passes daily, but something shocking happens there one day.