5 detectives enter a mansion to investigate the dead body of a scientist. They were also informed that the daughter of the household Hori is missing. Talk to suspects, point out lies, contradictions. Create and debunk arguments to proceed through the game and find out the truth behind the killing and the missing girl as well as bond with dozens of interesting fun detectives and witnesses.

The game features profanity, descriptions of gore and discussions of various themes and topics regarding sex and variety of crimes.