This episode pays obvious homage to the Neil Simon murder mystery parody "Murder By Death". First, all of the detectives were invited by the house's owner in a very similar manner to how the detectives were invited in "Murder By Death". Second, all the detectives except for Granny were obvious parodies of famous fictional sleuths (specifically, Sam Spade, Miss Marple, Kojak, Sherlock Holmes and Charlie Chan [three of whom were ALSO parodied in "Murder By Death"]). Third, all the detectives have had motives for the apparent murder of their host, just like in "Murder By Death". Fourth, the Kojak parody had revealed that the host was his biological father, which pays homage to Sidney Wang (who was the Charlie Chan parody in "Murder By Death") being the adopted son of the host. Fifth, it turned out that the host wasn't really dead after all, but had faked his own death by means of a realistic robot, which is another obvious "Murder By Death" homage.