When Rowland Sinclair is invited to race on the Maroubra Speedway, also known as `The Killer Track,' he agrees without reserve. But then a journalist covering the race is found dead; an English blueblood with Black shirt affiliations is killed on the race track, and Rowland himself becomes a target. Add to the mix a strange young reporter preoccupied with black magic, a mysterious vagabond, an up-and-coming actor called Flynn and ruthless bookmakers... Rowland soon finds danger at every turn.