The Case of the Howling Dog is a 1934 American mystery film directed by Alan Crosland. This was the first in a series of films in which William played Perry Mason. Arthur Cartwright, an anxious man, goes to Perry Mason to have his neighbor arrested for his vindictive and noisy dog. He is under the belief that his howling is an indication that somebody has been murdered in the neighborhood. He demands that his will be written bequeathing the estate to the lady living at the neighbor's house. However, the will is mysteriously altered by an unknown person and Cartwright goes missing, along with the lady. It is up to Mason to investigate. Adapted as an episode (#23) in season 2 of the Raymond Burr led series. (thetvdb.com)