The Woman on Pier 13 (1949)

Former stevedore Brad Collins is rising quickly in a shipping company when local Communist agitators use his former Party affiliation to extort his help in stirring up trouble. When Brad resists, Communist femme fatale Christine works through his brother-in-law Don. But Brad's new wife Nan sees that her husband and brother are under pressure; when she investigates on her own, party boss Vanning takes ruthless action.