Seymour, a young florist clerk, is in love with his partner Audrie, but she dates a sadistic dentist. One day, just after a strange eclipse, Seymour buys a small plant, which he names Audrie II. The plant will begin to move and even talk to Seymour, thus becoming an attraction to the town. What no one knows is that it is an abominable being that feeds on human blood.