The Sinister Side of the Moon — Tony Nash

A terrifying trip into yesterday.
When Mike Blake saunters out of his own front door he has no idea that he has stepped into another mind-blowing time dimension. Not only does he discover that Anita, his sex-averse wife, has become a raging nymphomaniac, but he soon finds himself targeted by unusual law enforcement and terrorist agencies, both urgently in need of using his new powers. He has to play both ends against the middle if he is to come out of it with a whole skin.