Insidious: The Last Key (2018) is the fourth installment in the Insidious horror franchise, directed by Adam Robitel. The film follows Dr. Elise Rainier (Lin Shaye), the paranormal investigator from the previous films, as she confronts a terrifying new case that hits close to home.

The story takes Elise back to her childhood home in New Mexico, where she experienced traumatic events involving her abusive father and the supernatural. When a new family moves into the house, strange occurrences begin to happen, prompting Elise to return and investigate. As she delves deeper into the house’s dark past, she must face her own personal demons and confront the evil spirits that have been tormenting her family for years.

The film explores Elise’s past, revealing the origin of her psychic abilities and the trauma that shaped her. With the help of her colleagues, Specs (Leigh Whannell) and Tucker (Angus Sampson), Elise must uncover the sinister secrets of the house and battle a powerful entity from the Further to save the family and herself.

Insidious: The Last Key combines psychological horror, supernatural elements, and emotional depth, offering a chilling conclusion to Elise’s backstory while continuing the franchise’s exploration of the haunted realms and otherworldly forces