A shopkeeper in North Wales seemingly vanishes into thin air after hanging a sign on her antique store saying she’ll be back in two minutes. Investigators search high and low for Trevaline Evans for decades, trying to track down a so-called “mystery man” in a suit who she’d been seen with in the days before she disappeared. But they find no trace of the 52-year-old grandmother. Her case becomes one police call the most confusing they’ve ever worked. And it becomes even more baffling when…nearly 40 years after Trevaline vanished…brand new tips roll in from two brothers in the UK who say they’d found her remains, and had proof. But those remains seemed to vanish too, leaving this mystery still unsolved.