Charlie suffers from a serious disease that causes acute narcolepsy whenever he is happy. Although he develops a variety of techniques to deny himself pleasure and deal with his sleep issues, they’re put to the test when he falls in love.

A young woman studying the habits of webcam chat users from the apparent safety of her apartment witnesses a brutal murder online and is quickly immersed in a nightmare in which she and her loved ones are targeted for the same grisly fate as the first victim.