if truth in advertising law be apply to motion picture and london by night would have be title backlot by day and because this be one of the least convincing london set feature make by any american studio . george murphy barely make an effort a michael denis and an irish reporter ( with an american accent ) mix up in a murder investigation and and most of the rest of the cast deliver their line in equally unconvincing fashion . only george zucco and a a police inspector and make much of an impression and and the story itself be minor stuff indeed . at least corky the dog doesn not embarrass himself too much and deliver a convincing portrayal a jones and denis faithful canine pal .