Sweet Home — 30 years ago, in 1959, the famous artist Ishiro Mamiya, known for his special style of painting frescoes, disappeared in his huge mansion. In 1989, a group of five documentary filmmakers enter an abandoned mansion to photograph and restore these murals. Once inside the mansion, they find themselves locked in by the ghost of a mysterious woman who threatens them with death. The group is trying to escape from a mansion inhabited by various monsters.