The Alfred Hitchcock Hour - Season 2 Episode 29 : Bed of Roses 1965

George Maxwell is a former playboy who has just married his boss's daughter Mavis. George, however, must meet an ex-girlfriend to give her money. He arrives in a cab only to find his ex-girlfriend dead. He heads back home, but the next day the cabbie who drove him to the murder scene threatens him with blackmail. George tells his Mavis and she kills the cab driver and buries his body in the rose garden. Mavis then tells George that she killed his ex-girlfriend because she was alos blackmailing him. George is impressed and, later, when George's secretary threatens blackmail because she he knows about the cab driver, George calls Mavis and tells her that more rose bushes are on the way.