Photographer Marc (Miloš Tichý) finds his quiet married life with his wife Grace (Randi Brooks) disrupted when an extraterrestrial entity disguising itself as a seductive woman named Sandra (Landon Hall) arrives on Earth. Operating through seduction, Sandra feeds on human sexual energy to sustain herself. As Marc is drawn into her web of temptation and desire, his marriage faces severe strain while he attempts to uncover the truth behind her hypnotic influence before it destroys his life and relationship.