AllMovie

When a mysterious stranger shows up at the school dormitory during the summer session and strange things start happening around campus, four students begin to suspect that the malevolent newcomer may in fact be the devil's daughter. While most of the students have left for the summer, for have remained in the dorms to study through the warm season. The day after the cook's granddaughter is found dead, a woman named Connie moves into the dorm. At first the students are merely suspicious of Connie, but when a series of strange incidents lead up to a shocking death, they become convinced that their new dorm mate is in fact a horrifying harbinger of doom. Now, as their struggle for survival grows desperate, the remaining students make a terrifying discovery about Connie's satanic family tree.