The Girl In The Box: The Kidnapping Of Stephanie Slater, 9pm, Ch5

THIRTY-ONE years ago, a young estate agent was abducted from a property she had arranged to show to a man she thought was a prospective client. He demanded a ransom from her employers, then gave police the slip after he had picked up the money. This two-part documentary, which concludes tomorrow, charts the hunt for Michael Sams, who eventually let Stephanie go — unlike Julie Dart, the teenager he had abducted and murdered six months before.