Kwon Jae Hee becomes the prime suspect in the barcode murders, but now it's a matter of proving it.

Detective Choi's close brush with the serial murderer puts his life in grave danger.

Cho Rim and Moo Gak must break a seemingly perfect alibi in order to help Ae Ri. Meanwhile, another barcode murder happens with a shocking victim.

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

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.

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

Moo Gak is officially appointed a detective position on a special team thanks to Cho Rim's help. The two exchange stories on how their strange senses or lack thereof came about.

In exchange for the help of her unique ability on a difficult case, Moo Gak becomes Cho Rim's partner for a comedy skit.

When Choi Eun Seol wakes up from a coma, she not only has amnesia, but the ability to see scents. Unbeknownst to her, she has also been given a new identity under the name Oh Cho Rim.