The Little Shop of Horrors recalled "at first they told me it was a detective movie; then, while I was flying back [to make the movie], I think they wrote a whole new movie, more in the horror genre. I think over a weekend they rewrote it." The screenplay was written under the title "The Passionate People Eater". Welles stated, "The reason that "The Little Shop of Horrors" worked is because it was a love project. It was "our" love project." The film was partially cast with stock actors that Corman had used in previous films. Writer Charles B. Griffith portrays several small roles. Griffith's
The Little Shop of Horrors from a toothache and so he visits Dr. Farb. Farb and Seymour fight after the doctor tries to get even for his flowers having been ruined. Grabbing a sharp tool, Seymour accidentally stabs and kills Farb. Although horrified, Seymour feeds Farb's body to Audrey Jr. The unexplained disappearances of the two men attract the attention of Sergeant Joe Fink and his assistant Officer Frank Stoolie, who are take-offs of "Dragnet" characters Joe Friday and Frank Smith. Audrey Jr., which has grown several feet tall, is beginning to bud, as is the relationship between Seymour and Audrey. A representative of the