'Until I Kill You' tells the true story of a woman who unwittingly dated a murderer. What to know about David, the partner who supported her.

Tech Insider
A man and a woman are standing in a long hallway. On the left, the man has thinning gray hair and is wearing a long navy coat with a black striped suit underneath. He's holding hands with the blond woman on the right, who is wearing a fake fur coat with a navy blue top underneath, a gray skirt, and a black belt.
Kevin Doyle as David and Anna Maxwell Martin as Delia Balmer in "Until I Kill You."

ITV

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