Less lurid than its title, Port of Missing Grils was one of several directorial efforts by screenwriter/cinematographer Karl Brown. After being framed for murder, heroine Della (Judith Allen) eludes both the police and the reel killer by stowing away on the freighter skippered by tough-but-kindly Captain Storm (Harry Carey). One she's discovered, Della falls in love with the vessel's wireless operator Jim (Milburn Stone). All three protagonists experience a series of hairbreadth adventures in Shanghai before word comes in from San Francisco that Della's been cleared of all charges. This Monogram low-budgeter is fun to watch but a bit hard to follow.