A serial killer is in town, killing young men and taking their hearts literally. The Black Widow. The bodies tally to 6 in a span of five months including famous composer Park Yoochun. Four agents are commisioned to find the killer: Jang Woo Hyuk, Kwon BoA, Ahn ChilHyun, and the rookie Shim Changmin. Will they be able to stop the monster and avenge the death of his beloved hyung? Or will he fall prey to the black widow and it's web of hearts?
