Three years ago, he was imprisoned for injuring someone in a fit of rage over his girlfriend. Three years later, he returns home to find his family in ruins: his older brother and sister-in-law died in a car accident, his father is crippled, and his seven-year-old nephew has leukemia. Their ancestral medical clinic is gone, and to make ends meet, his father took out high-interest loans, leaving them destitute. To add insult to injury, he discovers his girlfriend's betrayal. But he's not just an ex-convict; he's a prison doctor, a true master of his craft. His name is Chen Ping'an.