As an unliar, police officer Shin Nohee is unable to lie. And when accused murderer Lee Yeonho discovers this, he seeks her help to uncover the truth behind his adoptive parents' deaths. He suspects people are after him because he's a powerful suggester, a person who can verbally command anyone to do anything... even die! But due to his past trauma, Yeonho is having trouble opening up to Nohee. Will he tell her the whole story before her fellow officers find out that she's hiding a fugitive?