Black garbage bags filled with dismembered body parts begin to pop up around the city: in an elevator, on a highway, at the edge of a basketball court. The victims are nearly impossible to identify. The killer¹s motive is a complete mystery. Leading the investigation is Detective Cho (Han Suk-gyu), a burnt-out cop trying to redeem his tainted reputation with this case. Setting up a special crime investigation unit dedicated to these gruesome murders, Cho and his partner, the veteran Detective Oh, map out the order of the murders, interchanging the body parts like pieces in a grotesque puzzle.
A break opens up in the case when Cho is led to a beautiful and enigmatic young artist. Su-yeon Chae (Shim Eun-ha), with whom all the victims have had relations. But aside from this lead, Cho is far from solving the case. Still without a motive, Cho is grasping for clues. While being drawn closer to the mysterious Su-yeon, he begins unraveling her tortured past, leading to new questions and suspects.
Intriguing thriller with some interesting charactors. The plot may be a bit thin on believability at times, but overall it still manages to maintain one's interest throughout the film.