The Notting Hill Carnival is known for music, culture and celebration, but its origins trace back to a shocking unsolved murder. Vicky McClure and Jonny Owen uncover the story of Kelso Cochrane and the truth that may have been buried for decades. In a unique historical crime series, Vicky McClure and her historian husband, Jonny Owen, travel the UK exploring historic, culturally significant crimes that have changed the face of modern Britain. The married couple investigate unsolved murders, miscarriages of justice and milestone cases that have changed the law. Speaking to experts, historians, police officers and victims’ families, they examine the lasting impact each murder has left on the community and why these cases still resonate today.