Sohee is a high school student training for a subcontracted position at a call center, when a mysterious incident occurs leading to Sohee's death. Detective Oh Yu-jin takes charge of her case and slowly uncovers the harsh realities surrounding Sohee’s … Bae Doona, Kim Si-eun, Jung Hoe-ryn, Kang Hyun-oh, Bahk Woo-young, Lee In-young, Park Hee-eun Added on Netflix 2023-07-20.