Dina Matiass, 35, wanted her cleaner and childminder Nerissa DeVincente, 36, to have sex with her husband Zekri Gris – for £200 (R4 300).
Matiass was then going to use “evidence” of the affair as proof of adultery to launch a divorce battle against her rich husband.
But the plot backfired and Gris, 56, accused the maid of stealing money from him.
He and his wife, who have four boys aged 10, 7, 6 and 5, tied her up in their £650 000 (R14-million) home with rope and handcuffs.
He threatened her with a knife to make her “confess” to stealing £12 000 (R260 800) – with the pair even filming the 36-hour ordeal at their house in Bishop Sutton, Somerset, in the south-west of England.
