Jennifer and her business partner Dani head out for a garage sale and buy several things including a vintage tape recorder and a collection of tapes. Back at the shop Jennifer listens to one of the tapes and is convinced what she hears is the murder of who ever used it last. With her inquisitive nature stoked Jennifer returns to the property and discovers a dead body who, having called in Detective Lynwood, is Dr. Vedders' who had been running a therapy group up until he had recently retired to write his memoirs. With that inquisitive side going in to overdrive Jennifer can't but help start snooping.
Not the most compelling mystery but it's sufficient enough in keeping one in the dark, bumping up some suspense. The non-mystery bits ( family etc ) is routine. The conclusion is satisfactory.