Police(2001)

Natsuo, a new gay detective, has his first experience with Koide, but he secretly has feelings for Kirino, a senior detective. One late night, Natsuo and Kirino, who were on duty, hunt down a convenience store robbery, but are instead caught and tortured. Disillusioned with Kirino, Natsuo gradually rejects Koide. Frustrated, Koide starts going to the bar, meets Kirino by chance, and buys him with money...