A cautionary moral tale, about ethics, politics, promises, and duty of care. Surprisingly deep despite the sometimes shallow characters (like the playboy resident), this heart-pumping, oft gory drama about one of the top cardiology departments in Korea shows how far politicians, soldiers and doctors and prepared to go in order to ensure they reach the very top and remain there as long as they can. Pretty solid acting by all, especially northern side and the seemingly cold dad. A surprise sleeper hit which kept our pulses raised till the very end.