Han Shen perseverance in the tracing, he found that Bai Jin Xi actually has been struggling to find his fiancee Su Mian! The accidental amnesia of two people involved five years ago a serial killer organization committed the case. The serial killer organizations are members of the alphabet code, they act treacherously, enjoy the fun of killing, was banned by the police created an explosion, abducted Sammy and forged her identity that she survived. The two men after the case, even with the letter killer organizations are inextricably linked. Righteousness and evil showdown! When Han Shen and Sue sleep a little bit back memories, intends to fight against the letter killer organization, they found that the letter organization of the metamorphosis killer who have penetrated into their side...