When Dr. Alex Taylor opens her eyes, she is hooked up to an IV, restrained to an operating table, her legs raised in stirrups. Disoriented and alarmed, she assumes she's been anesthetized and brought to surgery after being in an accident. But the man standing over her, with his face hidden behind a surgical mask and wielding instruments, is no doctor she recognizes at the hospital where she works as a successful and respected physician. He's a stranger—and he's calmly and methodically telling her how he's about to attack her. Before Alex can even scream for help, she succumbs to another dose of anesthesia, rendering her unable to defend herself. When she comes to on a gurney, she finds herself surrounded by her colleagues and immediately reports the attack and rape. The police are skeptical of her bizarre story, and after a physical exam reveals no proof of any attack, even her boyfriend has doubts. Despite Alex's adamant claims, no one believes her, leaving her to wonder if she has, in fact, lost her mind—until she meets the next victim.