<p>Eighteen-year-old Park Joo-wan is illegally confined to a psychiatric hospital by his own family. This hospital is a hellish place, unbearable even for the sanest of people. His attending physician is a man who profits by smuggling patients, abandoned by their guardians, out of the hospital for his own benefit. One day, Park Joo-wan, whose blood type is RH-AB, catches his attention.</p><p>Meanwhile, Kwon Soo-hyuk, living a dangerous life where he never knows when or where he might be stabbed,...