Mike Blake walks out of the house one morning to find that his car is parked the wrong way round. He has never driven into a parking space in his life. Getting into the car, he realises that it is not his car, although the mileage is spot on. A short while later, when he arrives at work, he finds that things are vastly different to normal, and then he looks at the calender on the wall, and realises that he is in next week. He finds that there are great benefits, and, when more sinister characters impinge on his life, that there are tremendous disadvantages. Life is interesting, to say the least, and deadly dangerous. He will need all his wits about him, if he is to come out on top.