Fingers At The Window (1942) — There Are No Evil Spirits
Ever more clever unemployed actor Oliver (Lew Ayres) poses as one of the the paranoid schizophrenics being rounded up in Chicago, so he can see files linking the already captured axe-murderers to the psychiatric clinic, Miles Mander his enthused doctor, then wangles a ride back to his girlfriend, in Fingers At The Window, 1942.