Cons:

The film follows Josh as he tries to uncover the secrets of his family's past, only to discover that his deceased grandmother, Margarete (Barbara Hershey), has been trying to communicate with him from beyond the grave. As Josh becomes more entrenched in the mystery, he realizes that his grandmother's malevolent spirit has been awakened, putting his family in grave danger.

The Insidious franchise revolves around the Lambert family, who become entangled in a series of supernatural events. The first film introduces us to Josh Lambert, a young boy who, while sleeping, inadvertently travels to "The Further," a realm inhabited by malevolent spirits. His parents, Parr and Karen, seek the help of paranormal investigators, Josh's mother becomes possessed, and the family must navigate the treacherous world of the supernatural.