Tongdee is a drifter, was mistaken for Goay-tong, a mentally unstable millionaire. His wife, Chome wants the mental institute director to certify his illness. At the institute, Tongdee gets to know a young female patient named Arlai. Chome kept asking Tongdee for the key to the treasure chest. Tongdee turns mad and try to choke Chome neck so they took him to have a electric shock treatment.