The Black Motor Car - Harris BURLAND

Head over heels in love with the amazingly beautiful Mrs. de la Mothe, Jack Portheous is led to embezzle a large sum of money from the bank at which he works, and plans to elope with her to South America. On the eve of their planned departure, however, Jack finds his wife dead in their house, and as he blames himself for her death, he decides to cancel everything. Marie de la Mothe is not a woman to be trifled with, however, and she immediately gives him away to his employer, sending Jack off to prison for years.
After finishing his prison term and spending several years abroad, Jack returns to England, with nothing on his mind but the thought of revenge.. - Summary by Carolin