Murder Most Likely is based on the true story of undercover RCMP officer and consummate con artist Patrick Kelly. In 1981, Kelly’s wife died under mysterious circumstances. After eluding the police for three years, Kelly was eventually convicted of the murder following damning testimony from April Trent, a woman who said she had been sexually involved with him. Ten years later, however, April claimed she had lied on the stand. Patrick Kelly has always maintained his innocence.