Classic silent film directed by Alfred Hitchcock. A serial killer known as “The Avenger” is on the loose in London, murdering blonde women. A mysterious man arrives at the house of Mr. and Mrs. Bunting looking for a room to rent. The Bunting’s daughter is a blonde model and is seeing one of the detectives assigned to the case. The detective becomes jealous of the lodger and begins to suspect he may be the avenger.
Los Angeles aircraft worker Barry Kane evades arrest after he is unjustly accused of sabotage. Following leads, he travels across the country to New York trying to clear his name by exposing a gang of fascist-supporting saboteurs led by apparently respectable Charles Tobin. Along the way, he involves Pat Martin, eventually preventing another major act of sabotage. They finally catch up with Frank Frye, the man who actually committed the act of sabotage at the aircraft factory
Passengers on a scheduled train out of the mountainous European country of Mandrika are delayed by a day due to an avalanche, and thus get up close and personal with each other out of necessity in the only and what becomes an overcrowded inn in the area. Once the train departs, the one person who it is uncertain is on the train is a middle aged English governess named Miss Froy. Iris Henderson, who was vacationing in Mandrika with girlfriends before heading back to England to get married, is certain that Miss Froy was on the train as they were in the same compartment and they had tea together in the dining car, but all those people who can corroborate her story don’t seem to want to do so. Iris’ thoughts are easily dismissed as a possible concussion as Iris was hit over the head just before boarding the train. Iris will take anyone’s help in finding Miss Froy, even that of an Englishman named Gilbert, a musicologist with whom she had a not so pleasant encounter at the inn the evening