When a brutal mob hit occurs inside the victim's bedroom, and the killer isn't careful enough to look under the bed to make sure there aren't any witnesses, there are consequences—namely, a naked blonde witness who is able to escape the apartment. This blonde is only seen from behind. Aside from being petite, she has one distinguishing feature: a pink butterfly tattoo on her right ass cheek.

Lance, the guy in Chicago you hire when you have this type of problem, is given the near impossible task of tracking down this mysterious blonde with the pink butterfly tattoo, and follows next are a series of double-crosses and betrayals leading to a shocking finale.