The Silent Passenger is a British black-and-white mystery film produced in 1935 at Ealing Studios, London.

Her amateur sleuth, Lord Peter Wimsey, was portrayed as a somewhat eccentric comical aristocrat who solved murders.

While waiting for the train to take them to the cross Channel ferry, he is murdered by the husband of another one of his victims, railway detective Henry Camberley (Donald Wolfit).

The French police assume he murdered the rival for his wife's affections and return him to England by the next ferry.

Back in England Lord Peter sets about proving his newfound friend's innocence, using Ryder as "bait" to flush out the real killer and solve the murder.