Who Are You?

Inspector Yang Si Ohn wakes up from six-year coma with the ability to see ghosts. Still unsure of how to deal with such trauma, she finds herself pulled into the suicide case of a high school student.

Si Ohn and Gun Woo's jobs are on the line after investigating the suicide case without proper permission. As much as she tries to return to a normal life, the ghosts won't leave Si Ohn alone.

The episode picks up with Shi Ohn seeing the female ghost who is trying to tell her something about the briefcase. More obviously, this time, the ghost looks cold/frozen; her lips are blue and her breath is very visible. Gun Woo comes down the stairs and gets Shi Ohn’s attention, which snaps her out of her fear.

Si Ohn believes that the female ghost she's seeing is Prosecutor Park Woong Joon's fiancee, and begins to suspect the cold-hearted lawyer. Gun Woo transfers the joint investigation team to assist in this case.

A drunken night out with Gun Woo leads to Si Ohn finding a ghostly case close to home - one that involves Gun Woo's father.

The Lost and Found Division, along with the other sections, go on a team building retreat in the countryside. Si Ohn encounters the ghost of Lee Hyung Joon, but keeps his presence a secret from Gun Woo.

Hyung Joon enlists the help of Hee Bin to get a message to Si Ohn, because only Hee Bin can hear him. Si Ohn finds a new lead that can help her recover her lost memories.

Si Ohn finally confronts Moon Shik about his knowledge of Hyung Joon, but is he telling her the truth?

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