A melodrama about a man who survives an attempted double suicide with a stranger while picnicking with friends. He goes on a cave expedition for a famous archaeologist where he discovers a skeleton several thousand years old. He meets the spirit of the skeleton in a dream, and then becomes romantically involved with the archeologist's daughter.
Killer Butterfly is a 1978 South Korean film directed by Kim Ki-young. It was released on Blu-ray by Mondo Macabro as Woman Chasing the Butterfly of Death; bonus material includes several interviews of people connected with the film.