The Infernal Triangle

The Infernal Triangle was the 33rd episode of Sanford and Son. Also the 19th episode of the series' second season, it premiered February 2, 1973.

Plot
Fred announces his engagement to a woman named Judy (Ketty Lester), who, a widow at age 36, is a woman young enough to have been his daughter-in-law, who is also an old flame of Lamont's, who began dating her under the guise of the use of the name " J. Ruper Roe. Based on "Two's Company" by Ray Galton and Alan Simpson.