I'm noticing a trend here. Michael Ledwidge's lead characters are usually Irish, are hard-working and have good hearts, but get themselves into dire predicaments when they try to "do the right thing" and it backfires on them. And he seems to always leave things hanging in the end (we don't know what became of the lead character), which is equally annoying and gratifying, when you realize it won't be a happy ending, anyway.
In this book, Sean is a telephone company worker with a severely mentally disabled wife. He wants nothing more then to take her back to FL where he met her, and care for her full time, but he has to work for a living. One day while working on the telephone lines in an office building, he accidentally overhears a conversation between a CEO and an investment firm bigwig about an upcoming merger, and realizes that he has happened upon his miracle. He invests in the company about to be taken over, and makes a good return on his investment, so he decides to keep on listening and investing until he has enough money squirreled away to retire. During one of these listening sessions, he unwittingly learns of a murder and massive coverup that has taken place in Guatemala, and despite the potential payoff of investing in the merger that he also learns of during the same conversation, he decides to turn the tape he has made into the authorities and forgo that particular investment. His predicament is that he can't turn it in himself, because he will lose his job if he admits to the making of the tape, so he calls on his brother, Ray, who is a (dirty) cop to help him out. What ensues from there is a non-stop, action-filled chase which heats up as it becomes evident that Sean is now on his own.