"Angel Eyes" Lee Sang Yoon was in shock after realizing that his first love Ku Hae Sun was in a relationship with Kim Ji Suk.
On the 3rd episode of SBS weekend drama "Angel Eyes" broadcast on April 12th, Yoon Soo Wan (played by Ku Hae Sun) was caught as a hostage of a patient that was suffering from a mental condition.
On this day, Park Dong Joo (played by Lee Sang Yoon) got ready to go to the hospital to meet Yoon Soo Wan for the first time in twelve years. Then, Yoon Soo Wan was moving a mentally ill patient and heard that a person was held hostage.
The patient put his neck into Yoon Soo Wan and started to create a scene in the emergency room and was calm saying, "Patient, first let's get treated. You'll leave when you leave but you have to leave alive."
Park Dong Joo who changed back into a doctor's uniform tried to treat patients after persuading them. The patient threatened him saying, "Do you not know that you're trying to put anesthetics in there? You just sew this up." Park Dong Joo pretended to give Yoon Soo Wan medical items and whispered, "When the lights go off, go away."
This is because Park Dong Joo wanted to save Yoon Soo Wan so he told Moon Je Ha (played by Kim Ho Chang) to turn off the lights. Moon Jae Ha made sure the entire hospital was without electricity and Park Dong Joo saved Yoon Soo Wan and Kang Ji Woon (played by Kim Ji Suk) who came later was stabbed on the side with a weapon that the patient swung.
As the lights came back on, Yoon Soo Wan who was in Park Dong Joo's arms fell and Yoon Soo Wan went to Kang Ji Yoon. Park Dong Joo saw Yoon Soo Wan and Kang Ji Woon in each others' arms in a devastated way and this foreshadowed a love triangle.