Intruder

In Intruder, you take the role of an unsuccessful and highly indebted private eye, or, in one word, a loser. And what makes things even worse, your bank manager threatens to distrain upon you if you don't pay at least a part of your debts within a few weeks time. Then, a mysterious stranger turns up in your office, offering you a case. A job in France, by the sea, a burglar's job, a job you simply can't reject. Because if you do, you'll indeed lose everything.
[--blurb from The Z-Files Catalogue]