A second home in the mountains is supposed to bring tranquility, but for Nick Dowling it brings the horror of an unraveling past filled with nightmarish visions and the recurring memory of a murder. Believing that aliens have transferred another man's memories into his mind, he must find and seek the help of an alien abduction expert in order to restore his sanity, while his wife calls upon a therapist to explain her husband's delusions. As their marriage unravels, each desperately searches for the truth, but whose truth will ultimately prevail?