When Go Dong Chul's death is ruled a suicide, Kwon Joo realizes she must take things into her own hands. Jin Hyuk hurries to find the victim, whom he knows personally, of a kidnapping case.

The clock is rapidly ticking for Kwon Joo as her captors prepare to bury her alive. Meanwhile, Eun Byul's own life is in danger as she's hidden in a location unknown to the police.

Kyung Il reveals to Kwon Joo that he witnessed her father's murder. Jin Hyuk and Kwon Joo go off on their own, feeling closer than ever to finding the perpetrator.