“Last Night in Soho” is a psychological thriller movie about the mysterious link between a present day fashion college student and a blond bombshell cabaret singer from the late 1960’s. It is set in London, in the Soho District. This is where art and music and clubs mingle in a delicious stew of hedonistic wonder. The art student connects with, and begins to emulate, her decades-in-the-past muse. But if the narrator is unreliable from the beginning, can you really know what is going on?