Queen Mantis

A serial murder case resembling that of Jung I Sin makes Cha Su Yeol face what he's been avoiding all along.

Cha Su Yeol finds the suspect but the victim is missing, and Jung I Sin's true nature is revealed.

Jung I Sin helps Su Yeol amid a series of murder cases, but her true motives are unclear.

The killer targets Su Yeol and his family. Jung I Sin tells him to take down anyone who threatens his family.

As Jung I Sin's past gradually comes to light, Su Yeol's secrets are brought to the surface as well.

Su Yeols's brother-like friend is murdered before his eyes and now Su Yeol turns to Jung I Sin for help.

Cha Su Yeol gets kicked out of his team after the truth is revealed, but his sincerity isn't forgotten.

The real culprit is finally revealed, yet one mystery remains. What's in Jung I Sin's mind.