He Knows You're Alone is a 1980 horror movie directed by Armand Mastroianni and starring Caitlin O'Heaney, Elizabeth Kemp, Don Scardino and Dana Barron.
The film begins with a girl being murdered in a cinema by a killer called Ray. She was due to be married soon. Her killer escapes. He has already killed a girl on her wedding day. Cut to Amy(O'Heaney), who is also a bride to be. Her fiancée is going away on a bachelors weekend. Ray is following her and he sees her with her fiancée. Amy is a little nervous. She has a feeling that she is being watched. She bumps into a friend called Marvin(Scardino), who also happens to be her ex boyfriend. He doesn't think that she should marry her fiancée, Phil. Amy is in a dress shop trying on her dress when she thinks that someone is in there with her. It is Marvin. He wants to meet her. The killer stabs the shop owner later. He follows Amy home where her friends have arranged a surprise party for her.
Detective Len Gamble(Lewis Arlt) is after Ray. His fiancée was the girl in the wedding dress that Ray killed. He wants Ray and he is obsessed with the case. The killer murders one of Amy's friends who was having an affair with a professor. He also kills the professor. Amy thinks that she sees someone outside. She tells Marvin, but there is nobody there. Len visits the bridal shop where the owner was killed. He finds Amy's name on her dress. Amy goes for a run alone. The killer is following her. Len thinks that Amy is going to be the next victim. Amy and her friends go to a fairground. Amy sees the killer following her. Phil calls Amy but she doesn't answer the phone. Amy tells her friend Nancy(Kemp) that she saw someone after her. Nancy is the killer's next victim.
Amy returns home and she finds Nancy's head in her fish tank. The killer shows himself and he chases her. She gets out and she runs to the morgue where Marvin works. She tells him what is happening. He goes to see if the killer is around. Len is at Amy's house and he calls the station. They tell him that Amy has called them and told them about the killer. He goes to the morgue and he finds the killer chasing Amy. He shoots him but he ends up getting stabbed. Ray comes for Amy. She manages to stab his arm and lock him in a closet . She and Marvin escape as the police come in. The movie ends with Amy on her wedding day. She is marrying Marvin, not Phil. Phil shows up and she screams, suggesting that history will repeat itself.
This was a good slasher film. I liked it a lot. It is not mentioned when people talk about eighties slashers but it is worth a watch for slasher fans. It also features Tom Hanks in a very minor part. This is his first movie role! So, this film is not the most original one out there, but it is better than a lot of slasher movies that I have seen from this year. I recommend it. I will give it a 6/10.
