It is fashionable today for private eyes (and a lot of other protagonists) to have personal problems that affect their cases. Derrick Kruse has them, in spades. And that last part was an unintentional pun, as you shall see.
Kruse appears to be autistic and has OCD, which manifests as an obsession ith numbers. He is bad at poker because he is so desperate for straights, five numbers in a row. No doubt contributing to his problems is the fact that his father was an abusive monster who, naturally, picked on the kid who was different.
When Kruse spots a burglar in the middle of the night he encounters a woman with an abusive husband who has made off with her daughter, his stepchild. Naturally, this is not a case he can leave in the hands of the cops.
There are some unexpected twists an turns in this one.
