We Know the Devil

From Wikipedia:

We Know the Devil is a visual novel developed and published by Date Nighto. It was released on September 12, 2015 for Microsoft Windows and MacOS, before receiving a Steam release on February 15, 2016. On July 4, 2016, a separate art book titled, “The Art of We Know the Devil,” was published on itch.io by game artist Max Schwartz, followed by a March 19, 2017, itch.io release of the game, this time with a free supplementary demo serving the purpose of a prequel.