SocietysleuthsNickandNoraCharlesinvestigateamurderaboardafloatingcasino. NickandNoraCharlesareattendingacharitybenefitaboardagamblingship. Afteramurderoccurs,suspicionfallsonPhilBrant,whohadarguedwiththevictimearlierintheevening. WhenPhilandhiswifeseekhelpfromNickandNora,Nickrefusestogetinvolved. Butwhenshotsarefiredoutsidehisownapartment,Nickbeginstoinvestigate,andhesoonfindshimselfinaconfusingcasewithnumeroussuspects. NickandNoraCharlesweretheultimatescreencouple,husbandandwifedetectives,alwaysinstepandnevermissinganopportunitytooutwitoneanotherastheysolvedeachcrime,whichtheydidjustintimeforthemovie'sending. MyrnaLoywasafantasticNora,theidealwifeandconsideringshemade14movieswithWilliamPowell,shemadeitlookliketheywerereallymarried. TheThinManmovies,allsixofthem,playedmorelikesophisticatedscrewballcomediesthanmurdermysteries,andtheircomicbanterenhancedtheproceedings. Theirlittlewire-hairedterrier,Asta,quiteoftenstolethesceneashehelpedsleuthouttheguiltyparty. HewasagreatlittleactorandrumorhaditthatawayfromtheThinManmovies,AstawasreallySkippy. However,thesixThinManmoviescreditthiscutepoochas"Asta."