An all new '48 Hours' Saturday May 6, 2017

48 HOURS on CBS. The next episode is called, "Resident Evil" that will air this Saturday at 10/9 p.m. "Dateline NBC" covered this earlier in 2017.

CBS says, "Two double murders: a doctor's child, a housekeeper and a doctor and his wife. Police track clues to a local hospital -- could a doctor be a killer? CBS News correspondent Jim Axelrod investigates."