Books like The demoniacs by John Dickson Carr

Dan Brown’s thriller follows symbologist Robert Langdon and cryptologist Sophie Neveu as they race through Paris to solve a murder at the Louvre, uncovering a conflict between the Priory of Sion and Opus Dei over a controversial religious secret.

Walter Hartright, a drawing master, becomes entangled with Laura Fairlie, Sir Percival Glyde, and the scheming Count Fosco as questions of identity and madness intertwine in 19th‑century England.

Three generations of the Leonides family share a crooked house when patriarch Aristide is murdered, and suspicion falls on every family member. Detective Charles Hayward must uncover the killer to protect the family’s name.

An undercover reporter follows a celebrity into rehab to uncover juicy gossip about her personal life.

"I very much need to be dead." These are the chilling last words left by a man who had everything to live for but took his own life. In the void that remains stands his widow, FBI agent Jane Hawk, surrounded by questions destined to go unanswered unless she does what all the grief and fury inside her demand: Find the truth, no matter what. People of talent and accomplishment, people seemingly happy and sound of mind, have recently been committing suicide in surprising numbers. A disturbing pattern is beginning to emerge. Jane is determined to give up everything to find out why. And if that means going rogue and becoming America's Most Wanted, then so be it. Those arrayed against her are legion, and devoted to protecting something profoundly important-or terrifying-enough to exterminate any and all in their way. But Jane is as clever as these enemies are cold-blooded, as relentless as they are ruthless. And she is driven by a righteous rage they can never comprehend. Because it is born of love.

A locked‑room murder mystery where the death of Miles Despard is linked to eerie supernatural hints, raising questions about time and impossible intrusions.

When a violent death shatters an English estate, Dr. Gideon Fell is called to untangle the tangled claims of its two heirs.

Professor Charles Grimaud is challenged by a stranger who claims to have risen from his own coffin. When the stranger dies violently during a snowstorm, Dr. Gideon Fell investigates a killer who leaves no footprints.