There exists a legendary team of surgical experts in Tojo UniversityHospital that specializes in the Batista procedure - one of the mostdifficult cardiac surgeries with the survival rate only at 60%. Eversince its formation, this team has shocked the country by having 26 consecutive post-operative successes, virtually unheard of in themedical community. They basked in the glory until one day when threerecent procedures produced consecutive deaths on the operating table. Taguchi, an internal medicine specialist has been entrusted with the investigation but since he is dealing with skills beyond his realm of expertise, he soon brushes off speculations of murder and deems the deaths accidents. Then arrives Shiratori, a Ministry of Health investigator. He not only labels Taguchi naive but speaks with confidence that this is a murder, and the murderer is within this team of elites. As the mystery unfolds, so does the complicated affiliation between each of the seven team members, will the duo discover the truth in time?

东城大学医学部附属医院一向最值得夸耀的，就是疑难心脏病手术的成功率是100%，他们有专门负责左心室减容术的团队被称作Batista队。但现在却已 经连续三例病人在手术中死亡的事情，这到底是医疗事故还是故意杀人？医院里的心理医生田口公平和后省劳动省的官僚白鸟圭辅，开始一起追查真相。