![Insidious](https://movieminions.me/wp-content/uploads/2024/04/tmlDFIUpGRKiuWm9Ixc6CYDk4y0-185x278.jpg)
Susan Morrow receives a book manuscript from her ex-husband – a man she left 20 years earlier – asking for her opinion of his writing. As she reads, she is drawn into the fictional life of Tony Hastings, a mathematics professor whose family vacation turns violent.