In an attempt to escape again, Myeong-jun and Ro-hee request help from someone. Jaden threatens Myeong-jun and Ro-hee as he receives a call from the kidnapper about a negotiation. Meanwhile, Sang-yun, investigating Hye-eun's connection to a murder case involving Cheol-won, discovers something about Dr. Choi Jin-tae's long-term experiment.