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1. The Sitter-in

The detective and his journalist wife must find a missing baby and identify a mystery man.

2. The Marlow Incident

With Queenie dead, will her clue help the detective and his wife find the missing baby?

3. Introducing Mr Droste

More mystery, as the detective sets out to unravel the secret behind Mrs Desmond's gloves.

4. Boulevard Seminaire

The mystery glove trail leads the smooth detective and his wife to a rendezvous in Paris.

5. Roger Shelley Makes a Suggestion

The detective and his wife are in Paris when the telephone rings with a long distance call

6. Suspect Number One

A practical joke has unexpected repercussions and no one admits to knowing Marian Faber.

7. Steve Entertains

The detective tries to send his wife Steve away, for fear that reprisals are on their way.

8. Presenting Mr Vandyke

The detective throws a party, inviting all suspects, so he can finally unmask the culprit.

With the Compliments of Mr Gregory

The daughter of an eminent physician disappears after a night out at the Alpine Club.

Introducing Sir Donald Murdo

Paul and Steve take a walk to a lonely clifftop cottage.

The Madrid

Steve takes an eventful taxi ride to a louche Mayfair nightclub.

Mr Davos Has an Alibi

Another death, and this time the killer comes very close to home.

Virginia van Cleeve

A sinister shop in the East End may hold a vital clue for the suave sleuth.

Concerning Mr Zola

A lingering scent of perfume may give a vital clue to the latest murder.

A Woman's Intuition

Gunfire at the Madrid nightclub, and a dying man's confession.

News of Mr Gregory

Steve goes in search of a trumpeter at the Hammersford Palais.

Millgate Steps

Temple and Sir Graham take to the river in the hunt for the missing girl.

Presenting Mr Gregory

Paul sends out invitations to a very special party at the Madrid club.