Killer Assistant

Successful wife with weak husband sleeps with another man.....lover proceeds to lose his mind.....lover murders husband....wife and child team up to kill lover....we will not all feel sorry for the unfaithful wife and we will see no tears shed for the husband. The end. I never cease to marvel at how many of these movies, all with identical plots, will be made and put on television. The acting was pedestrian, the plot utterly predictable and the ending a foregone conclusion. A twist on this tired narrative might be helpful.