In Maryland, a woman graduate student is stabbed and is in serious condition. Because of the crime occurred on U.S. government-owned property, the FBI launches an investigation. Two other students at the same college were slain previously and all three victims belonged to the same sorority. Erskine and Daniels take charge and are joined by a woman FBI agent who graduated from the same college and belonged to the same sorority. The FBI has three suspects and the woman FBI agent will be endangered before the case is concluded.