Colonel March of Scotland Yard Season 1, Episode 24: The Invisible Knife

1

The Sorcerer

A psychologist is found stabbed to death in a seemingly sealed room. Inspector March needs to decide who had the most reason to kill him, and how did they accomplish the task.

27 min

2

Present Tense

Colonel March's niece, a believer in spiritualism, thinks she hears her dead husband's voice and others in the house become convinced her husband has returned as a ghost. But has he?

27 min

3

At Night All Cats Are Gray

A French fashion model asks for Colonel March's help, claiming a strange man is following her and she fears for her life. Several hours later she's found murdered, in mismatched colour, a telling clue for the inspector.

27 min

4

The Abominable Snowman

Members of the Himalayan Mountaineering Club are threatened by what appears to be the abominable snowman, and someone leaves a strange footprint on a ledge outside Colonel March's office.

27 min

5

The Headless Hat

While on holiday in France, there is a murder at the docks and Colonel March is asked by a friend of the French police to assist. The only clue left behind by the culprit, a sailor's cap - "looking for the head that fits this hat."

27 min

6

The Second Mona Lisa

Two Mona Lisa paintings appear on the art market | but which one is the second original and which is the copy? Colonel March is determined to reveal the truth.

27 min

7

Death In Inner Space

At an isolated château outside Paris, a scientist insists he's received radio waves emanating from Mars. Seeking a way to suspend a person's life functions during space travel, his volunteer subject dies from lack of oxygen. Accident or foul play?

27 min

8

The Talking Head

A 12 year old boy insists his dead father told him to kill his mother's new fiancée. But did the father truly die in an accidental plane crash?

27 min

9

The Devil Sells His Soul

Colonel March hypnotises five people to solve the stabbing murder of Lord Telford, while he himself portrays the murder victim.

27 min

10

Murder Is Permanent

Colonel March is called in to investigate a murder in a beauty salon. There are plenty of suspects and it's up to Colonel March to single out the murderer.

27 min

11

The Silent Vow

Colonel March and Inspector Goron are present in a café when a customer dies from poisoned wine and the waiter falls under suspicion because he was a former chemist.

27 min

12

Death And The Other Monkey

A scientist conducting cancer research is convinced that his test monkey was not only stolen but replaced. He is later found dead from gas, and Colonel March must prove if it was suicide or not.

27 min

13

The Stolen Crime

A man demands to be arrested for plotting the perfect murder of his wealthy wife, who is found dead that night of natural causes. A valuable coin collection holds the answers.

27 min

14

The Silver Curtain

Behind the "silver curtain" spray from a fountain, a man is found dead with a knife in his back. Colonel March is called in to investigate.

27 min

15

Error At Daybreak

A shady businessman collapses on an oceanside jetty, the apparent victim of a heart attack, but a vacationing March discovers blood and a needle near the body. A little boy's lost ball may be the key to a possible murder.

27 min

16

Hot Money

A bank robbery takes place and the suspect, never out of sight, is followed to his office, where he locks himself in. But when the police and Colonel March search his office there is no trace of the money!

27 min

17

The Missing Link

A skull, known as the Damascus man, is stolen from a museum and Colonel March's life is imperiled trying to solve the case.

27 min

18

The Case Of The Misguided Missal

A 15th century prayer volume disappears from a sealed casket inside the locked safe belonging to an Oxford Don. An illusionist is called in to demonstrate how the book can disappear from a locked safe, when the supernatural is suspected.

27 min

19

The Deadly Gift

A pretty barmaid receives an unusual Christmas gift, a music box from a thief, dead ten years. But someone is soon murdered searching for something valuable hidden in the mysterious gift and Colonel March believes the music holds the key.

27 min

20

The Case Of The Lively Ghost

A phony spiritualist believes she's truly summoned a real ghost. Colonel March attends her next seance to discover the identity of the spirit's killer - dead or alive.

27 min

21

Death In The Dressing Room

Murder and blackmail culminate in this episode where a call for help during a Javenese dance is the clue that Colonel March needs to prove a faulty alibi.

27 min

22

The New Invisible Man

Colonel March receives a queer complaint that a pair of disembodied gloves killed a man. He refuses to give up easily despite the fact there is no corpse, no blood, and no evidence of wrongdoing.

27 min

23

Passage At Arms

A woman is found dead, but was it suicide or murder? A French fencing match provides the telling clue and Inspector Goron travels to London to assist Colonel March.

27 min

24

The Invisible Knife

March must solve the mystery of how a man could be stabbed to death by an invisible knife, while attempting to summon The Devil during a black rite.

27 min

25

The Case Of The Kidnapped Poodle

Colonel March is called in to investigate the theft of a valuable diamond as well as the kidnapping of a little boy's poodle. As the investigation continues, he begins to think both incidents may be connected.

27 min

26

The Strange Events At Roman Falls

When a wife reports her reclusive mystery writer husband has accidentally fallen from a cliff, suspicion points to her as the killer. Colonel March is called in to investigate at the isolated seaside manor.

27 min