Can't Remember 90s Movie Name

The woman’s sister is murdered. She goes looking for her sister’s killer and ends up sleeping with the cop investigating the murder. It’s a 90’s movie and there’s a scene where she fights guys coming for her and the cop in bed.

  1. Fight scene in bed with girl is topless and she beats up several guys while cop gets beat up.

  2. Shower scene where sister is talking to other girls about what may have happened to sister.