Kenneth Stewart, had been in business with Helen Shields, running the adult parties where sex takes place, but they had fallen out.

The prosecution alleged that Stewart, known as 'Tony' chased Miss Shields through the detached house in Radlett, Herts, squirting lighter fuel over her and clutching a lighter.

But on Tuesday he was cleared by a jury of attempting to inflict grievous bodily harm with intent and an alternative making a threat to kill.
...
On Saturday February 20 this year a party was due to be held at a private house called 'Littlecroft' in Theobald Street, Radlett, Herts.

https://www.watfordobserver.co.uk/news/8374689.radlett-man-cleared-of-attempting-to-set-swinger-ex-wife-on-fire/

A man drowned after going into a swimming pool with a woman he had been dancing with at a James Bond-themed swingers' party, an inquest has heard.

Edmund Echukwu, 35, entered the pool at a private property in Radlett, Hertfordshire, with a woman before he got into difficulties.

The inquest heard how he went under the water and did not come up again. It emerged later that he could not swim.
...
Mr Echukwu was at a party at Littlecroft in Theobald Street, Radlett, when he got into difficulties in the pool

https://www.bbc.co.uk/news/uk-england-beds-bucks-herts-37187250

A man has been arrested on suspicion of murder after a man died in a swimming pool at a party.

Paramedics called police to a house in Theobald Street, in Radlett, Hertfordshire, at about 04:50 BST on Sunday.

A man, aged in his 20s, was taken out of the pool unresponsive and pronounced dead at the scene, police said.

A 34-year-old man from Brighton was arrested and released on conditional bail until 17 June.

https://www.bbc.co.uk/news/uk-england-beds-bucks-herts-61569747