Who Was Maddox? (1964)

1964 was the year of the beehive, and all the female cast members have hairstyles bigger than their heads. The plot meanders about, but enjoy the locations like London zoo, a very 60s rock garden and the usual houseboat on the river. Jack Watling is good as the main character, Jack Heath, who gets a phone call tellling him his boss has been murdered. He turns up only to find the boss alive and well. But then he's murdered later that night, and Heath is accused. Bernard Lee is always worth watching.