Brotherly Hate

In this episode of The Whistler, titled 'Brotherly Hate,' Jeffrey Long, the owner of the Jeffrey Long Museum, receives threatening notes linked to the anniversary of his former assistant Estelle's death. He seeks help from private detective Burton, and eventually discovers that his secretary Bernice, who claims to have found Estelle's brother, is actually plotting against him. Jeffrey realizes that Bernice is Estelle's sister and intends to avenge her death. With the arrival of detective Burton, the truth unfolds, leading to a dramatic resolution.