On January 22, 1992, a real estate agent named Stephanie Slater was subdued, gagged at knifepoint, and held captive for eight days. This program explores her ordeal as a case study in memory-aided investigation; it also juxtaposes Slater’s case with an extended psychology experiment in which ten volunteers have taken part to assess the value of eyewitness testimony. Illustrating the phenomenon known as contextual reinstatement and its central role in cognitive interviewing, the film highlights recently developed technologies that might help improve the memories of the test participants. A cognition-related encephalitis case study is also included. Produced by the Open University. (59 minutes)