'This Sounds Serious' is a comedy fiction show sending up the true crime genre and its conventions. In 'Missing Melissa', host Gwen Radford finds herself on the trail of America's most missing person: Melissa Turner's a 28-year-old from Idaho who goes AWOL so often she's earned the nickname 'Mel-issing'. Every other time it's happened she's shown up unharmed, but with Melissa going walkabout yet again there are fears that this time something sinister might have happened to her.