Plot

Roger Porter (Washington) is the long-lost black son of Walter Whitney (Segal), a respectable businessman who lives in the all-white community of San Marino, California. Walter, who is Jewish, has been hiding that fact for purposes of professional advancement in the business which his anti-Semitic father-in-law (Warden) heads.

Once Roger turns up at Walter’s office, it turns out that he is the result of Walter’s relationship with a black woman, who is now dead. Walter’s father-in-law had warned him that the relationship would be harmful to his career, so he broke it off.