Little Shop of Horrors (1986)

"A singing plant. A daring hero. A sweet girl. A demented dentist. It's the most outrageous musical comedy in years."

Seymour Krelborn is a nerdy orphan working at Mushnik's, a flower shop in urban Skid Row. He harbors a crush on fellow co-worker, Audrey Fulquard, and is berated by Mr. Mushnik daily. One day, Seymour finds a very mysterious unidentified plant which he calls Audrey II. The plant seems to have a craving for blood and soon begins to sing for its supper.