On the day Young Oh joins Hyunsung Medical Center as an assistant professor, a patient is rushed in after being struck by a vehicle; Young Oh takes one look at the patient and refuses to perform surgery; Jin Sung threatens to arrest him.

Jin Sung has suspicions about the death of Chul Min; she is convinced that the body of Chul Min was switched and believes Young Oh to be behind this.

Jin Sung is shocked when she finds out that Suk Joo knew about the missing heart; she tells Dong Jae what she knows and he finds something suspicious about Chul Min.

People are shaken up when they hear that someone in the hospital may have murdered Dong Jae; Hyun Joon, the director of Hyunsung Medical Center is worried.

Jin Sung arrests Young Oh because of a tip she was given by Gun Myung; Gun Myung takes Young Oh's place as lead surgeon and operates on Dr Shim.

Young Oh is shocked to find out that Min Jae knew his secret all along; she testifies that Young Oh suffers from antisocial disorder and is a psychopath.