Four people are discovered brutally murdered in an up-scale high-rise apartment. All the victims appear to be family, but as the investigation deepens it is discovered that one of the victims isn't related to the family.
Ishikawa, Police
Yuji Yashiro
Satoko Sunagawa
Nobuko Katakura
Takahiro Koito
Caretaker
Toshiko Takarai
Yoshio Sato
Yasutaka Takarai
Katsuyuki Akiyoshi
Mieko Kasai
Mutsuo Takarai
B-ko
Toshiko
Ayako Takarai
Writer
Akie Sato
Izumi Shinoda
Tatsuo Takarai
Takako Koito
Kinue Ishida
Shizuko Koito
Kazuki Hayakawa
Shinji Koito
A-san
Police
Mutuo Toura
Yoshifumi Katakura
Yukari Ishida
Naomi Ishida
Taeko Katakura
Fusao Ariyoshi
Atsuko Kitahata
Naozumi Ishida
Katsuko Akiyoshi
Naotaka Ishida
Rich young man
