The allure of horror films lies in their ability to blend suspense, mystery, and terror, often with a twist of the unexpected. This curated list of ten horror films focuses on the niche genre of private detectives who delve into cases that are anything but ordinary. These films not only provide spine-chilling entertainment but also showcase the detective's journey through the dark underbelly of society, making them a must-watch for fans of both horror and detective genres.

The Lodger: A Story of the London Fog (1927)
Description: Alfred Hitchcock's early thriller about a mysterious lodger suspected of being a serial killer, with a detective on his trail.
Fact: This was Hitchcock's first thriller, setting the stage for his later works.


The Strange Case of Dr. Jekyll and Mr. Hyde (1931)
Description: While not a traditional detective film, the story involves a lawyer investigating the strange behavior of his friend Dr. Jekyll, leading to the discovery of his alter ego, Mr. Hyde.
Fact: Fredric March won an Oscar for Best Actor for his dual role in this film.


The Woman in Green (1945)
Description: Sherlock Holmes and Dr. Watson investigate a series of murders where the victims are found with their right index finger missing, leading them into a web of hypnosis and horror.
Fact: Basil Rathbone, who played Holmes, was known for his dedication to the role, often staying in character even off-set.


The Hound of the Baskervilles (1959)
Description: This classic adaptation of Sir Arthur Conan Doyle's novel features Sherlock Holmes investigating the mysterious death of Sir Charles Baskerville, possibly due to a supernatural hound. It's a perfect blend of detective work and gothic horror.
Fact: This film was the first Hammer Horror film to be made in colour, and Peter Cushing's portrayal of Holmes is considered one of the best.


The Bat (1959)
Description: A mystery writer and a detective investigate a series of murders committed by a masked killer known as "The Bat."
Fact: The film was based on a play by Mary Roberts Rinehart and Avery Hopwood, which was itself adapted from Rinehart's novel "The Circular Staircase."


The Black Cat (1934)
Description: A honeymooning couple stumbles upon a feud between two old friends, one of whom is a detective-like figure investigating the other's dark past.
Fact: This film was the first pairing of horror icons Boris Karloff and Bela Lugosi.


The Spiral Staircase (1946)
Description: A mute woman is stalked by a serial killer in this suspenseful thriller. While not a traditional detective story, the film's protagonist employs detective-like skills to survive, making it a fitting entry.
Fact: The film was remade in 1975, but the original is often praised for its atmospheric tension and innovative use of sound.


The Screaming Mimi (1958)
Description: A private detective investigates a series of murders linked to a nightclub dancer and her traumatic past, blending noir with horror elements.
Fact: The film was based on a novel by Fredric Brown and features Anita Ekberg in one of her most memorable roles.


The House That Dripped Blood (1971)
Description: An anthology film where one of the segments features a detective investigating the disappearance of a horror film star, only to encounter supernatural forces.
Fact: The film was directed by Peter Duffell and includes segments written by Robert Bloch, known for his work on "Psycho."


The Monster (1925)
Description: A detective and his assistant are trapped in a creepy old house with a mad scientist and his monstrous creation.
Fact: Lon Chaney, known as the "Man of a Thousand Faces," starred in this silent film.
