Description：It tells the story of two Catholic priests who were involved in an incident and the series of stories that unfolded from it. Priest Kim (Kim Yoon-seok) was ostracized by other priests in the church because he always acted on his own. In order to save the girl Young Shin (Park Soo-won) who was in crisis due to a mysterious traffic accident, he made a dangerous choice amid everyone's opposition and suspicion and planned all his actions alone. Vice Priest Choi (Kang Dong-won), who was a seminary student, was a bad student who cheated and drank, but he had all the conditions to help Priest Kim, so he joined Priest Kim's plan to help him save the girl. He did not believe everything Priest Kim did, and while helping him, he also took on the task of monitoring him. He performed dangerous rituals with Priest Kim, but was involved in an unexpected mysterious incident.