Apartment Inferno.

Who doesn't know this problem? You cheerfully kill someone, but how will you get rid of the corpse now? No problem for Yoshiki who is specialised in getting rid of anything in his apartment. Someday his junior partner Chiharu finds in the apartment a mysterious in blood-soaked woman, who is currently getting rid of some corpse parts. In the time Yoshiki isn't in the apartment they both get closer...