A Girl Who Sees Smells

While fleeing the scene of her parent’s murder, Choi Eun-sol (Shin Se-kyung) is hit by a car and ends up in a coma.  As the only witness to the serial killer, known as the barcode killer due to the signature barcode carved into victims’ skins, she is kept under careful watch at the hospital.  When she wakes up from her coma she has lost all of her memories, but soon discovers that she has developed a unique ability – to see smells.  Using this skill, she is able to trace where people have been and what they have been up to.  For her safety and protection, a new identity is created for her – Oh Cho-rim, daughter of Oh Jae-pyo (Jung In-gi).

Meanwhile, on the same night, Choi Moo-gak (Park Yoo-chan) arrives at the hospital to collect his sister, who shares the same name as the witness – Choi Eun-sol (Kim So-hyun), only to find she has been murdered.  Determined to catch the killer, Moo-gak becomes a police officer, and to prove that he is detective material, he strikes a deal with Cho-rim.