Forfeit

This is an okay book written by Dick Francis. Journalist James Tyrone lives with and cares for his disabled wife who is suffering from polio. Since she can no longer provide physical intimacy due to being paralyzed and using a respirator, he starts to have an affair. When he discovers a betting racket involving horse races, he is attacked by a group of thugs who don't want their scheme revealed. They force him to get drunk and then leave his house. Now he must try to get his wife out of the house and attempt to drive her to safety.