The unforgettable villain from “The Caller on Line One” returns. A serial killer records his murders and sends the tapes to the police. A young detective takes charge and enlists the help of a beautiful FBI agent — with a great set of ears — whose specialty is analyzing audio recordings. But will that lead them to the killer before he strikes again?

Dr. Alexander Scofield encounters his friend, retired police captain Waverly Underhill, at a Provincetown art opening. Then they both encounter a murder. The celebrity judge is stabbed in the back upstairs. Downstairs, there are seventy or eighty guests, one of whom must have done it.

Captain Underhill takes charge and quickly devises a simple but ingenious test that will force the killer to reveal himself.

A comatose witness in the hospital is stalked by a fiendish killer. A compassionate psychiatrist must use the techniques of hypnosis to reach her in time before the killer does. A psychological thriller uniquely suited for radio. Told from the internal perspective of the comatose patient, it guides us through the twilight realm of the subconscious mind, where the real and the surreal coexist.

An old man leaps to his death from the Sagamore Bridge spanning the Cape Cod Canal. A clear case of suicide? Perhaps not, once Captain Underhill reads about it in the newspaper. Now, using the same bridge for his own cat and mouse purposes, Captain Underhill takes the killer for a ride…

A literary flashback combining the creations of Charles Dickens (A Christmas Carol) and Erle Stanley Gardner, this courtroom melodrama poses the questions: What if Ebenezer Scrooge was murdered, found strangled in his bed with a bell cord knotted around his neck and a stake of holly driven through his heart? And what if the man charged with the crime was his own employee, Bob Cratchit?

Lady Kemp is worried. Her granddaughter, Carmeline, is about to marry Victor Fabloose, a French playboy who may be a gold-digger ... or a poisoner.

Captain Waverly Underhill is offered $25,000 to make sure the marriage never takes place. To succeed, he devises a clever scheme involving real buried treasure—a solid-gold statue of a pirate as big as a chocolate Easter bunny.

Bobby Winslow is a hard-on-his-luck, independent Cape Cod fisherman who takes a calculated risk venturing out to the Five Fathom Rip area of George’s Bank. His luck holds until the tide turns ... one man drowns in the net, another is sliced dead-on-the-spot when a winch cable snaps. These accidents prove anything but accidental.

When little Anna Gale Storm is abducted by a stranger in a white van, the police — and the media — spring into action. Bulletins are issued. The police swarm. News and police helicopters hover near the twin bridges. Anna Gale’s mother, Betsy Storm, is hysterical but must be questioned. The police are desperate, frustrated by the fact that the only eyewitness is a frightened, easily confused, five year old named Jody Higgins.

Menacing mob enforcer, Ricky Rubusto, kidnaps pet and store mascot, Hercules, world’s largest captive lobster, holding it for ransom and threatening to devour it unless radio DJ, Molly Neptune, pays off her father’s gambling debt. Now Captain Underhill must save the lobster before it ‘sleeps with the fishes.’

A mystery lampoon recorded live at the Woods Hole Community Hall, July 15, 1989. Hugo LeGrand, “The Great Hugo,” is determined to defy public opinion and be the first to help himself to the loot from the sunken Titanic. Together with his hapless pilot, Mr. Smalley, they discover a surprise much greater than teacups and saucers.

A Captain Waverly Underhill mystery.

Captain Underhill and Doctor Scofield recount their very first case.

April, 1961. It is tourist season on Cape Cod … and open season on the President. Having sent its favorite son to the White House, Cape Cod has come under the spell of Camelot. Young police deputy Waverly Underhill meets Doctor Scofield for the very first time, and together they seek to stop an assassination plot that anyone would call crazy.

It begins as static ... then, you hear a voice, desperate, frightened, coming from a shack in the Cape Cod dunes, broadcasting his story to anyone who might be listening. He tells an unbelievable tale of missing persons and an unseen enemy that may already have conquered us.

Is he insane? Is he deluded? And most terrifying of all, is he telling the truth?

Tanya Macklin is the host of Talk Line, the weekly, advice-on-the-air radio program. Tonight, however, the problems of her listeners are about to take a back seat to one of her own ... a problem so large, it will transform her normally sane world into a nightmarish world of terror.

A real-time suspense thriller in the tradition of Sorry, Wrong Number.

For years an anonymous Cape Cod mural painter has been adorning the underpass to the Barnstable Village railroad bridge with images of scantily clad nudes in Classical poses. An activity which, although many in the Village enjoy them and approve, is also illegal and a source of irritation—particularly to nearby neighbor, Otis Narwhal, who feels the paintings go too far. With night-vision binoculars he sits on his porch at night, hoping to spy the Phantom Artist at work and report her to the local police.

Edward Wolcott is an innocent tourist abducted from his motel room, taken by boat, and strapped to a large sea buoy in the Woods Hole Passage. His strange night bobbing alone at sea turns into one of sheer terror, when he realizes the current is slowly dragging the buoy under.

An excellent Halloween story, this Pit and the Pendulum-style thriller places the listener on the buoy with Mr. Wolcott to experience the terror first hand.