Bae Doona, Kim Si-eun, Jung Hoe-ryn, Kang Hyun-oh, Bahk Woo-young, Lee In-young, Park Hui-eun, Kim Yong-jun, Sim Hee-seop, Choi Hee-jin, Yoo Jeong-ho, Hwang Jeong-min, Park Soo-young, Heo Jeong-do, Kim Woo-kyum
High school student Sohee starts job training at a call center, but she faces pressure of greedy company. Detective Oh Yu-jin, who has something in common with Sohee starts to follow traces to reveal the truth.