Insidious Movies: Release Order
The Insidious franchise is a supernatural horror series that explores the terrifying realm known as The Further, where malevolent spirits prey on the living. This complete release order follows both the Lambert family saga and the backstory of psychic investigator Elise Rainier as original audiences experienced them.
This is the recommended viewing experience for first-time viewers, because the later prequels contain references and character developments that assume knowledge from the original films. The order preserves the intended scares, reveals, and emotional impact while showing how the franchise evolved from the Lambert family's supernatural struggles to exploring Elise's earlier cases and personal history.
There are 2 other watch orders available – see the links up above.

Insidious
When a family's young son falls into a mysterious coma, they discover their home is haunted by malevolent spirits seeking to possess him. They must venture into a supernatural realm called "The Further" to save their child's soul.

Insidious: Chapter 2
The Lambert family continues to battle supernatural forces as they investigate a dark childhood secret that keeps them tethered to the dangerous spirit world.

Insidious: Chapter 3
A teenage girl and her family face supernatural terror as they encounter the dark mysteries of 'The Further,' a sinister otherworldly realm.

Insidious: The Last Key
Parapsychologist Elise Rainier investigates a haunting in Five Keys, New Mexico, only to discover the case involves her own childhood home and dark family secrets.

Insidious: The Red Door
Josh Lambert and his college-aged son Dalton must venture deeper into The Further than ever before to confront their family's dark past and face new supernatural terrors lurking behind a mysterious red door.
Other Film Series
Candyman
A horror franchise centered on the vengeful spirit of Candyman, exploring urban legends and supernatural terror across different timelines and locations.
Edgar Wallace
German crime thriller series from 1959-1972 that created a distinctive subgenre of atmospheric gothic mysteries, featuring recurring cast and iconic villains.
Prom Night
A horror franchise that blends slasher and supernatural elements around the prom night setting, featuring mostly standalone films with one connected supernatural subseries.
Romero's Living Dead
George A. Romero's groundbreaking zombie saga, featuring classic horror films and several reboots.
The Amityville Horror
A sprawling horror franchise centered on a haunted house and the cursed objects that spread its evil influence.
X Horror Series
Ti West's acclaimed horror trilogy following the intertwined fates of Maxine and Pearl across generations, blending slasher thrills with character-driven storytelling and period-specific atmosphere.