Omoi wa Anata Dake: I Thought about You

Two men have feelings for private detective Matsuzawa. One is Matsuzawa's assistant, and the other is a man involved in the murder of Matsuzawa's wife... An incident causes the two men's feelings to reach a boiling point. This leads to an unwanted battle of the male instincts and eventually to a shocking ending...
(Source: Japanese = enkpromotion.info || Translation = MDL)