A Prisoner of Birth - Jeffrey Archer

If Danny Cartwright had proposed to Beth Wilson the day before, or the day after, he would not have been arrested and charged with the murder of his best friend. But when the four prosecution witnesses are a barrister, a popular actor, an aristocrat, and the youngest partner in an established firm's history, who is going to believe his side of the story?
Danny is sentenced to twenty-two years and sent to Belmarsh prison, the highest-security jail in the land, from where no inmate has ever escaped.
However, Spencer Craig, Lawrence Davenport, Gerald Payne, and Toby Mortimer all underestimate Danny's determination to seek revenge, and Beth's relentless quest to pursue justice, which ends up with all four fighting for their lives.