An Evil Streak is a three-part British television psychological drama series, created and written based on the novel by Andrea Newman published in 1977. It was directed by Edward Bennett and first broadcast on ITV for three consecutive weeks from 17 to 31 May 1999 on Mondays. It was produced by London Weekend Television for the ITV network.
The series follows Gemma Clarkson (Rosalind Bennett), who has been led astray by her uncle and godfather, Alex Kyle (Trevor Eve), ever since she was a little girl. Now that she is older, his obsessive influence becomes even more sinister as he manipulates her into an extra-marital affair. A scheming uncle leads his married niece into an affair with an out of work actor. Alex is also overwhelmed by the death of his much beloved brother and hates the guts of Beatrice, his widowed sister-in-law, the mother of Gemma.
The series has never been re-broadcast or released on DVD or VHS.