Some of these women see me as a knight in shining armour, but I'm just a businessman with a heart.

Honeytraps and spy phones, sexpionage and integrity testing - Richard Martinez uses it all in his private detective business and reveals his surveillance secrets in this compelling book.

It's not just about catching out love rats and stalking stalkers: Martinez also helps parents who want to know if their teenagers have joined gangs and women in fear for their lives if they leave abusive husbands. Often dramatic but sometimes hilarious, these true stories of a P.I.'s experiences offer insights into a morally dubious society and controversial truth-finding services.