An 18-year-old Russian model falls dead on a runway during a fashion show. Mac and Danny investigate and soon discover another victim. Back at headquarters, a terminally ill man arrives with a gun and claims to have killed his doctor in an alley. Stella and Lindsay go to the scene and find the victim with a gunshot wound in her back. They also discover that the woman is covered with leeches beneath her clothes. Although the man confessed, Stella doesn't believe him.