“Rosemary’s Baby,” the four-hour adaptation of the 1967 best-selling suspense novel by Ira Levin, will air on NBC Sunday, May 11 and Thursday, May 15. The telecast will air each night from 9-11 p.m. ET/PT. “Rosemary’s Baby” centers on a young married couple who move into a Paris apartment that has a haunted past. After getting pregnant, the wife becomes increasingly suspicious that both her husband and their neighbors will have ulterior motives when her child is born.