The middle-aged beautiful woman Kate was taking a shower. Her husband Mike was shaving outside the bathroom. Suddenly a killer holding a razor rushed out and Kate woke up from her dream. Kate's remarried life bored her, her husband Mike was cold and indifferent, and his son Peter was a scientific genius, busy participating in science competitions all day long. Kate came to her psychiatrist Eliot and told him her distress. She was worried about her charm and even teased Eliot. Eliot solemnly rejected her.
Kate came to the exhibition hall to relax, and met a man. After the two were silently provocative, Kate followed him into a taxi, and the impatiently lonely Kate melted in the man's enthusiasm. Late at night, Kate woke up, although she was surprised by her frivolous behavior, but she did not regret this passionate encounter. Kate left a message to the man in bed who hadn't woken up: "I am very happy this afternoon, I hope we will meet again in the future", and then suddenly found the man's venereal disease diagnosis in the desk, panicked Kate hurried out of the room . Kate found out in a panic that she hadn't got her wedding ring, and hurried back to the room to get it, but was killed by a blonde woman with a razor in the elevator. The blonde prostitute Blake and a client saw Kate fallen in a pool of blood. Blake in a panic picked up the razor. The cleaner on the stairs thought she was the murderer, and the police immediately arrested her.
Eliot went home late at night and heard in the answering machine that Barbie, who claimed to be his patient, said that he took Eliot's razor and killed a woman, and another message was that the police station wanted him to go. Elliott met Kate's son Peter at the police station. The sheriff asked him to provide a list of his patients to facilitate the investigation. Elliott refused in the name of protecting the privacy of the patients. Hearing the news, Peter started plotting to find the murderer of his mother. The blonde prostitute Blake could not find the client that night to testify for herself, and was threatened by the police to find evidence for herself. Peter installed an automatic camera at the entrance of the psychology clinic to take pictures of all the patients entering and exiting the clinic, hoping to find the "blonde woman". On the way home, Blake was followed by the blonde assassin, and was finally saved by Peter, who also followed her. When Blake called the police the next day, she was threatened by the police to steal Eliot's case file. Eliot went to Barbie's doctor Levy to find Barbie.
One thunderstorm night, Blake came to Eliot for "treatment", and Peter was watching outside. Blake used his own charm to steal Elliott's patient record, but when she returned to the treatment room, the blonde assassin suddenly appeared in the dark room. Peter was about to rush in to rescue him, but was hugged tightly by a dark shadow behind him. Just as the blond assassin held the razor high, the dark shadow behind Peter suddenly shot the assassin. It turns out that the blonde assassin is an identity of Elliott, who is schizophrenic. When Ellio is excited, he becomes Barbie, and Barbie wants to kill the woman who seduces Elliott. Originally, Barbie was doing sex reassignment surgery , but Elliott became the last obstacle. The black shadow behind Peter is the policewoman Ruth sent to protect Blake and Peter. Everything became clear, Eliot was sent to a mental hospital to wait for trial, Peter's stepfather Mike was on a business trip, and Peter invited Blake to live in his own home. Another night, Elliott killed the coquettish nurse. Blake was in the shower, and a shadow appeared outside the bathroom. She was frightened and wanted to resist, but finally a razor slashed it head-on. Blake woke up from his dream and hugged his head in horror.
