Season 3

1. A Piece of Cake (Christmas Special)

1974-12-26 · 40m

A man who recently inherited a fortune drops dead in the middle of his speech after the annual family dinner on Christmas Eve. There are six suspects - but which has the strongest motive? The sleuths are Wendy Craig, Leslie Crowther, Patrick Mower and Derek Nimmo.

2. Portrait in Black

1975-07-14 · 40m

Actor Norman Bowler and novelist Jackie Collins join regulars Anouska Hempel and Patrick Mower to follow another sprinkling of clues. As always, there are more than a few red herrings.

3. Final Drive

1975-07-21 · 40m

Many crimes are solved by pure deduction - or a process of elimination. Aimi MacDonald and Alfred Marks are the guest stars pitting their wits against the audience to solve another murder mystery.

4. Pop Goes the Weasel

1975-07-28 · 40m

A row is brewing within a famous pop group the Weasels. But before the showdown ensues, one of the group is murdered on stage. Guest stars are Paula Wilcox and Richard O'Sullivan.

5. Evidence of Death

1975-08-04 · 40m

A murder is committed in a research lab and the only clues are a ring and a matchbox. Scientist Magnus Pyke and actress Polly James put their heads together to try and solve another mystery in which nothing is quite as it might at first seem.

6. Nothing to Declare

1975-08-11 · 40m

How did a suitcase of clothes become a suitcase of rubies?

7. Death at the Top

1975-08-18 · 40m

The chairman of the board has been murdered. Whodunnit? And how?

8. Too Many Cooks

1975-08-25 · 40m

The chilling tale of the frozen chef. Who froze him and why? The CIA, MI5 and French security services are the principal ingredients in this mixture of freshly cooked spies. Getting their teeth into the clues are Rodney Bewes and Julie Edge.

9. Worth Dying For

1975-09-01 · 40m

Terry Scott and Dilys Laye join the panel to puzzle out a cleverly planned shooting. The gun is found but all is not as it appears - and the main red herring could be a dead rat.

10. Fly Me, I'm Dead

1975-09-08 · 40m

Another mystery to test the sleuthing talents of viewers and panelists including guests Honor Blackman and Leslie Crowther. This time it's a murder at 30,000 feet over France.

11. Beware Wet Paint

1975-09-15 · 40m

The managing director is dead but how did his body get across a freshly painted floor? Guests include Rosemary Leech and Jimmy Jewel.