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简介：Whenaphotographistakenatthesceneofamurder,thecameraistossedoutofacastlewindowtodestroytheevidenceandlandsinthebackofapassingcarbelongingtochemistJohnGraywhobecomesamateursleuthafterdevelopingthefilmandgoesinsearchofthewomancapturedbythephotograph.Whenthecameraisstolenfromhislaboratory,Gray'ssuspicionsarefurtheraroused.…