The Solitaire Man, like The Amateur Cracksman in "Raffles", or the Sparrow in "Twin Husbands," is a thief. Like many thieves who've been successful, he was getting out of the game.
Oliver Lane (Herbert Marshall) was the Solitaire Man and he had a small crew: Mrs. Vail (May Robson), Helen Heming (Elizabeth Allan), and Robert Bascom (Ralph Forbes). The gang was experiencing turmoil because Robert was in love with Helen who was in love with Oliver. Fortunately, this wasn't the principal part of the plot. That would've been the last thing I wanted to watch, but it was important.
Robert, who was a young upstart, put everyone in hot water when he stole a necklace. Oliver decided that putting it back was the safest and best course of action. When he went to place the necklace back where it belonged, someone else entered the dark room too. When a Scotland Yard officer entered the room he was shot and killed which made everything exponentially worse.
Oliver and crew scheduled a flight the very next day to Devonshire. On the plane they encountered a man claiming to be a Scotland Yard inspector, Inspector Wallace (Lionel Atwill), and he knew that Oliver was the Solitaire Man.
These are the kind of wrinkles I enjoy: a time crucial situation. I just watched "The Silk Express" in which a train had to get to New York in a certain amount of time. The main character was going to have to solve the murder that happened on the train before it reached New York if he was to have his silk offloaded on time.
In "The Solitaire Man" Oliver and his entire crew had until they reached England to figure out who killed the cop or Oliver would go down for the murder. It was compelling theater. There were a couple of lights out scenes in there which are a bit comical, but besides that it was a solid plot and script.
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