This is somewhat unusual in fiction movies. By contrast, in some of Castle's films, the audience has no idea where the film is going. In fact, this sense of moving into uncharted territory creates considerable suspense. The audience is often wondering what strange thing will eventually happen. A common theme of both The Voice of the Whistler and Homicidal is normal life being undercut by concerns over money.
People give up their chances for marriage and family for money.
Castle suggests that this leads to horrible emotional problems. There is often a great sense of sadness built up over this waste. These include the unseen but much talked about father in Homicidal , and the heroine in The Voice of the Whistler . Both of these characters cause all of the tragedies we see on screen. Their obsession with strength is a precipitating factor in these tragedies in both films.