ある優しき殺人者の記録
- Blwyddyn: 2014
- Gwlad: Japan, South Korea
- Genre: Horror, Thriller, Crime
- Stiwdio: Zoa Films, Nikkatsu Corporation
- Allweddair: monster, mass murder, time travel, alien, found footage, confession of crime, single take, other dimension, crime serial
- Cyfarwyddwr: 白石晃士
- Cast: 김꽃비, Yeon Je-wook, 葵つかさ, 米村亮太朗, 白石晃士, Park Jung-yoon