The Demon Within (1985)

Name: The Demon Within
Genre: Fantasy, Horror, Mystery
Released: 1985-12-27
Duration: 54 min
Cast: Kazuyo Matsui, Kyōzō Nagatsuka, Ichirō Ogura, Yousuke Saito

A journalist becomes possessed by a gakidama, a spirit of the dead. Unknown to the man, a demon is now incubating in his stomach, and a mysterious stranger seem to know what afflicts him.