简介：SenttoSingSingprison,influentialcrookSpencerTracyisunregenerateandrefusestoadheretotherules.Whileinsolitaryconfinement,Tracyreconsidershisattitude.Thankstothecorrectionalfacility'scompassionatewarden(ArthurByron),Tracybecomesamodelprisoner,evenrefusingtoparticipateinajailbreak.Thewardensetsupaspecialprogrampermittingselectedprisonersadegreeoffreedomandevensuggestsallowinganoccasionalfurlough.WhenTracy'sgirlfriend(BetteDavis)ishurtinanautoaccident,heisgivena24hourpasstovisither.It'satestcase--ifTracydoesn'treturn,thewardenwillbediscreditedandreplaced.Whileonthe"outside,"Tracylearnsthathisoldrival(LouisCalhern)wasresponsibleforhisgirl'sinjuries.Davisshootstherival,whointurnfingersTracyastheoneresponsible;theconvictthusrisksexecutionuponreturningtothearmsofthelaw.Basedonthebookbyreal-lifeSingSingwardenLewisE.Lawes,20,000YearsinSingSingwasremadein1940asCastleontheHudson.…