While examining Mrs. Na, a patient who came to the orthopedic clinic, Eun-mi sees bruises at her back and tells Jin-hee that she suspects domestic violence. They also suspect that Mrs. Na's grandson was also abused. Eun-mi, who hates people who hit their family, gets angry again.

A man keeps on following Eun-mi. After the recent murder case, Jin-hee becomes anxious and tries not to leave Eun-mi alone, but she is worried because a strange man, Park Jin-hong, keeps wandering around their apartment. Meanwhile, Jin-hong stops by the orthopedic clinic for a treatment.