While Linzi was at work, the following day, and shopping with her mum, on Saturday, I put my plan into action.

I’d decided that she must only fuck him in the living room, and not the bedroom (how thoughtful), so I hid the digi-cam among some of my books and magazines, on a high shelf, that overlooked the sofa and part of the room. By linking the camera to the video I would be able to tape 3 hours of evidence.

Not wanting any mistakes, I took the fuse out of the TV plug. I told her that there was a problem with the TV that I would fix when...