Truth of Mind ~Kokoro no Yami ni Hisomu Akuma to Tenshi~

One day a rape case occurs in a theater that main character is guarding. Owner of the theater asks protagonist to investigate this case discreetly so that theater reputation does not suffer. Girls willingly cooperate with investigation, but then second and third rape cases occur as if criminal wants to ridicule the investigator. Will hero be able to catch the culprit and protect cute theater girls?

[From vndbreview]