Moo Gak investigates the seemingly next victim of the barcode murders with the help of Cho Rim once again, but the outcome is unexpected.

Chef Kwon is a suspect for murder, but Cho Rim is determined to prove his innocence. Moo Gak makes an unexpected discovery on his sister's murder.

Cho Rim gets hired at Chef Kwon's restaurant. Moo Gak wants Cho Rim to stop helping him investigate murders.