With rumors of infidelity and an unhappy marriage, Marlene's husband Michael Warren emerges as the prime suspect, but with a solid alibi detectives can’t prove his involvement, and the case goes cold. Three decades later there's a shocking twist – Michael's alleged mistress Sheila Keen is arrested for Marlene’s murder accused of donning the clown disguise. In May 2023 Sheila pleaded guilty just before trial. Case closed? Or does this guilty plea raise as many questions as it answers?