The Watcher in the Woods

The Watcher in the Woods is a 1980 American horror film directed by John Hough, and starring Bette Davis, Carroll Baker, LynnHolly Johnson, Kyle Richards, and David McCallum. Based on the 1976 novel of the same name by Florence Engel Randall, the film tells the story of a teenage girl and her little sister who become encompassed in a supernatural mystery regarding a missing girl in the woods surrounding their new home in the English countryside.

Helen and Paul Curtis Carroll Baker and David McCallum and their daughters Jan LynnHolly Johnson and Ellie Kyle Richards, move into a manor. Mrs. Aylwood Bette Davis, the owner of the residence, notices that Jan bears a striking resemblance to her daughter, Karen, who disappeared inside a chapel near the villageyears previously.Jan begins to see strange blue lights in the woods, triangles and glowing objects. Eventually, Ellie goes to buy a puppy she names Nerak an anagram for Karen. After seeing the reflection of the name Nerak Karen spelled backwards, Jan finds out about the mystery of Mrs. Aylwoods missing daughter. ........

Source: Wikipedia