The film is based on case files taken from the Department of National Revenue (Taxation) of the Canadian Government. The film follows the course of the investigation from the time the Government investigators obtain a search warrant to seize files in Sloane's home and office to the time of trial. Government investgators are shown taking a typewriter sample from the typewriter of Sloane's private secretary, carrying out files, and interviewing subcontractors. In addition, Sloane's tax-evasion strategies are detailed, such as the falsification of invoices by Sloane's private secretary to conceal personal expenses charged as business expenses. The film also dramatizes the way in which the investigation affects Sloane's employees, his wife, who finds that her respected family reputation will suffer, and his son, whose sports car is now only further evidence for the prosecution. (Author abstract modified)