In the Mouth of Madness

In the Mouth of Madness also known as John Carpenters In the Mouth of Madness is a 1995 American Lovecraftian horror film directed and scored by John Carpenter and written by Michael De Luca. It stars Sam Neill, Julie Carmen, Jrgen Prochnow, David Warner and Charlton Heston. Informally, the film is the third installment in what Carpenter calls his Apocalypse Trilogy, preceded by The Thing and Prince of Darkness.

After exposing an arsonfraud scam, Trent, an insurance investigator, has lunch with a colleague who preps him on his next assignment, investigating a claim made by New Yorkbased Arcane Publishing. During their conversation, Trent is attacked by a man wielding an axe who, after asking him if he reads Sutter Cane, is shot dead by a police officer before he can harm Trent.Trent later meets with Arcane Publishing director Jackson Harglow Charlton Heston who tasks him with investigating the disappearance of popular horror novelist Sutter Cane Jrgen Prochnow, and recovering the manuscript for Canes final novel. He assigns Canes editor, Linda Styles Julie Carmen, to accompany him. ........

Source: Wikipedia