• title card: white all caps text reading ‘MANDRAKE’ superimposed on a close-up of the skull of a doctor’s anatomical skeleton
  • Cathy meets the Rev Wyper while photographing the churchyard; the sexton lurks in the background, keeping a suspicious eye on Cathy
  • Mrs Turner, sitting, signs the cheque while Dr Macombie and Hopkins flank her, left to right
  • The Rev Wyper draws a pistol... a water pistol
  • Steed roughs up Benson, pinning him against the mirror of his cabin with his umbrella
  • Steed and Cathy are all smiles as they confront the veiled Mrs Tyurner, Hopkins and Dr Maccombie in the churchyard

Series 3 — Episode 21

by Roger Marshall
Designed by David Marshall
Directed by Bill Bain

Plot summary

The Church in Tinbey has no parishioners, but the graveyard is full of new coffins, containing wealthy names. Macombie and Hopkins specialise in organising murders and the bodies are then buried in Cornwall; The soil in the ground is polluted by arsenic from the disused tin mine, disguising the unnatural deaths of the victims. The Avengers ensure that the next victim is not buried and the autopsy proves their case.

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John Steed (Patrick Macnee) attends the dreary funeral of John Benson, an old secret service colleague, in rain-drenched Tinbey, Cornwall, conducted by Reveverend Adrian Wyper (George Benson), and his presence concerns the only other mourner, Roy Hopkins (Philip Locke).

Hopkins and Dr Macombie (John Le Mesurier) finalise a contact with Benson (Robert Morris) for safe disposal of his father. Hopkins promises Macombie another £20,000 a year - another client. Steed visits Benson on his yacht and grills him about his father’s death. Steed tells Catherine Gale (Honor Blackman) he doesn’t believe Benson, and shows her some death notices for Tinbey - three from London in the past month, Tinbey being a ghost village since the tin mine shut down. Benson goes to Macombie and is told not to worry, an exhumation can find nothing, but was followed... Cathy visits the graveyard and photographs the headstones, meeting the vicar who reveals the churchyard used to have a mandrake root and now has deadly nightshade. In the church, she meets Hopkins who has brought Mrs Turner (Madge Ryan) to see the vicar to buy a plot for her ‘ailing’ husband. Outside, Cathy overhears Hopkins tell the Cockney sexton (Jackie Pallo) they’re in business again, and if he sees Cathy snooping around, they’ll make it a double booking.

Mrs Turner writes a £5,000 cheque to Mandrake Investments and is given a bottle containing a fatal dose of poison. Steed tracks Hopkins to a Christmas cracker business, where Judy (Annette André) reveals he’s seldom there - he inherited the business after his uncle died - in Cornwall! Cathy’s catalogue of eleven recent graves turns up nine in ‘Who’s Who’, seven of which left estates in excess of £100,000. Eight of the eleven were treated by Macombie so she visits him, feigning an injury, and frightens him by saying she lives near Tinbey and was a friend of John Benson. Macombie immediately phones Hopkins, wanting to back out again. Later, Steed breaks into Macombie’s through a side door Cathy had unlocked while Macombie made up some eye drops and goes through his case notes. Cathy meanwhile has returned to Cornwall and is set upon by the sexton as she collects soil samples. The sexton dispatched, the vicar appears and holds her at gunpoint...

Steed returns to the cracker factory and learns of Mandrake Investments from Judy. He then visits Benson and roughs him up - Macombie’s notes included a prescription on a day John Benson was in Beirut. Cathy returns to the church (the vicar had a toy gun) with the evidence - the soil analysis shows the earth is thick with arsenic, which the vicar attributes to the proximity of the tin mine, but is dismayed when he realises he’s been burying the victims of murders through Hopkins and Macombie. They formulate a plan...
At the end of the internment, Steed and Cathy stop Hopkins, Macombie and Mrs Turner from leaving, informing them Turner hasn’t been buried, he’s in the mortuary, and a post-mortem conducted an hour ago proved acute arsenic poisoning. Hopkins calls the sexton over to help, but he’s on Cathy’s side since losing the fight (and being bribed) and takes the villains into custody. It starts to pour with rain again...

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