Books in the Lasker Investigations series

Down-and-out P.I. Derek Lasker hopes his luck has taken a turn for the better when he lands a case with Bob Linehan, a client who believes his potentially psychotic teenage son, Bob Jr., is the culprit of a heinous crime. Lasker follows the teen into Toronto's dark underworld of violence and crime, realizing too late that he's got his eye on the wrong psychopath. It's a grave mistake that could cost him dearly. But will it cost him everything?