You are watching A Night in Montmartre the movie produced in United Kingdom belongs with duration 69 Min in Category Mystery,. broadcast at streamingjoy.com , by [ Gainsborough Pictures ] A young couple live under a café in Paris that, unknown to them, is owned by a brutal blackmailer. When he is murdered, they fall under suspicion. However, the husband's father, an amateur detective, believes in their innocence and sets out to find who really killed the blackmailer..