The TARDIS materialises in Paris in the year 1572 and the Doctor decides to visit the famous apothecary Charles Preslin. Steven, meanwhile, is befriended by a group of Huguenots from the household of the Protestant Admiral de Coligny. Having rescued a young serving girl, Anne Chaplet, from some pursuing guards, the Huguenots gain their first inkling of a heinous plan being hatched at the command of the Catholic Queen Mother, Catherine de Medici.
Unfortunately the movie Doctor Who: The Massacre of St Bartholomew's Eve is not yet available on HBO Max.
| Directing | Paddy Russell | Director |
| Writing | John Lucarotti | Writer |
| Writing | Donald Tosh | Writer |
| Writing | Gerry Davis | Script Editor |
| Sound | Pierre Arvey | Music |
| Art | Michael Young | Production Design |
| Production | John Wiles | Producer |
| Writing | Donald Tosh | Script Editor |
| Sound | Delia Derbyshire | Theme Song Performance |
| Costume & Make-Up | Daphne Dare | Costume Design |
| Camera | Tony Leggo | Camera Operator |
| Editing | Bob Rymer | Editor |
| Costume & Make-Up | Sonia Markham | Makeup Artist |
| Production | Fiona Cumming | Assistant Production Manager |
| Production | Gerry Mill | Production Assistant |
| Crew | Brian Hodgson | Special Sound Effects |
| Lighting | Dennis Channon | Lighting Director |
| Sound | Gordon Mackie | Sound |
