The Three Investigators in The Secret of Terror Castle

After starting their own detective agency, Nick and Audrey Spitz land a career-making case when their billionaire pal is kidnapped from his wedding.

Both Scotland Yard and an amateur American sleuth are tracking a master criminal known as The Frog. This moniker refers to the bulging-eyed mask worn by the evildoer, and is reflected by the frog icons painfully tatooed onto the forearms of his henchmen. The trail leads to the country manor of an enigmatic, steely-eyed nabob, whose repressed son has eyes for the artistes at the Lolita cabaret, and whose lovely daughter captures the fancy of both the American playboy and the villain himself. Murder, kidnapping and seduction ensue.

A lovely dame with dangerous lies employs the services of a private detective, who is quickly caught up in the mystery and intrigue of a statuette known as the Maltese Falcon.

After getting hired to probe a suspicious death in the small town of Wander, a mentally unstable private investigator becomes convinced the case is linked to the same 'conspiracy cover up' that caused the death of his daughter.

Victoria "V.I" Warshawski is a Chicago based private detective who agrees to babysit for her new boyfriend; then he is murdered. Being the detective type, she makes the murder her next case. In doing so she befriends the victim's daughter, Kat, and together they set out to crack the case.

A private detective takes on a case that involves him with three eccentric criminals, a beautiful liar, and their quest for a priceless statuette.

Private Investigator Philip Marlowe is hired by wealthy General Sternwood regarding a matter involving his youngest daughter Carmen. Before the complex case is over, Marlowe sees murder, blackmail, deception, and what might be love.

Over-the-hill gumshoe in Los Angeles seeks to avenge the killing of an old pal, another detective who was involved in a case concerning a murdered broad, stolen stamps, a nickel-plated handgun, a cheating dolly, and a kidnapped pussycat.

Holmes and Watson board a passenger train bound from London to Edinburgh, to guard the Star of Rhodesia, an enormous diamond worth a fortune belonging to an elderly woman of wealth; but within the first hour of the trip, the woman's son is murdered and the diamond stolen and any of the passengers in their car could be the killer thief.

He's Ace Ventura: Pet Detective. The Ace is on the case to find the Miami Dolphins' missing mascot and quarterback Dan Marino. He goes eyeball to eyeball with a man-eating shark, stakes out the Miami Dolphins and woos and wows the ladies. Whether he's undercover, under fire or underwater, he always gets his man… or beast!

A conservative Midwest businessman ventures into the sordid underworld of pornography in search of his runaway teenage daughter who’s making hardcore films in the pits of Los Angeles.

A down-and-out Brooklyn detective is hired to track down a singer on an odyssey that will take him through the desperate streets of Harlem, the smoke-filled jazz clubs of New Orleans, and the swamps of Louisiana and its seedy underworld of voodoo.

To the Los Angeles elite, Ford Fairlane is known as "Mr. Rock 'n' Roll Detective." This loudmouthed ladies' man serves an exclusive rock star clientele, who depend on his keen eye and smug discretion. So when a heavy-metal musician dies mid-concert, Fairlane is on the case before the lights come up. But things turn shocking when radio personality Johnny Crunch hires Fairlane to find a missing groupie mere hours before he is electrocuted live on air.

Harry Crumb is a bumbling and inept private investigator who is hired to solve the kidnapping of a young heiress which he's not expected to solve because his employer is the mastermind behind the kidnapping.

Emily Boynton, the stepmother to three children, blackmails the family lawyer into destroying a second will of her late husband that would have freed the children from her dominating influence. She takes herself, the children, and her daughter-in-law on holiday to Europe and the Holy Land. At a dig, Emily is found dead and Hercule Poirot investigates.