Tew transfers his job back to his home town to care for his sick mother. However, when he arrives he discovers a suspicious occurrence of deaths among terminally ill patients.

Rin reveals the cause of death of the recent murder victim. Tew investigates who would have access to the medications used in the crime.

Tew intensifies his investigation into the suspicious deaths of terminal patients, leading him to confront Kan. As secrets are unveiled, both face moral and emotional dilemmas that challenge their beliefs about life, death, and medical ethics.