A woman claims she woke up to find herself on her husband’s bed naked and then “raped” by him.
In the new CCTV footage, the woman can be heard screaming and saying: “I can’t believe this is happening to me.”
In the next minute or so, she says: “He’s touching me and I’m getting naked.”
She can be seen holding her legs out in front of her and crying “I’m going to die” as her husband walks away.
The woman, who cannot be named for legal reasons, claims the couple had an “explicit” sexual relationship but was not physically intimate.
The man was filmed leaving the scene, and the woman was then allegedly “forced” to have sex with him.
A spokesperson for the Metropolitan Police said: “Officers were called at 12:59am on Sunday 24 June to reports of a woman in her 30s who had been sexually assaulted by a male at her home in Hounslow, Hertfordshire.”
She told police the man had approached her and her husband, aged 44, and forced himself on them.
A report into the incident will be opened on Monday.