Repent at Leisure, by Stevie Turner
"Paul McAdam wakes up with a strange girl in his bed, with no idea who she is or where she came from.
Cat Taylor worms her way into Paul’s life, eventually moving into his flat. The arrangement suits Paul quite well until he meets Anita Fairfax, the love of his life and the girl he wishes to marry. Cat has to go, but Paul finds that she is not interested in moving out.
When Cat is found dead in Paul’s flat, he's the #1 suspect, even though there's not a shred of evidence. Anita and Paul are happily married, but she soon begins to wonder whether her new husband could have been Cat’s killer all along..."
between this couple. This is where I will stop and say you will have to pick up "Repent at Leisure" to get all of these questions answered and so much more. I will say I was left shaking my head and saying I didn't see that one coming. However, this author is noted for giving the reader surprises and that was one surprised ending for me.