Linda Diego is a repressed-appearing telephone operator with an exhibitionist streak - as anybody who saw her doing Brick Majors in the middle of a bar would agree. Hubby Frank Bukkwyd, of course, has no clue about her nocturnal missions, or that she's watching porn on TV late at night with one hand on the remote and one hand elsewhere. Private dick Randy Spears is following her at Bukkwyd's request, though: Maybe Bukkwyd isn't as oblivious as he seems. And maybe finding out that the color red turns Diego on could work against Spears, which he realizes when she holds a knife to his throat....

Five sex scenes, all appropriately subordinate to the plot. Some good special effects mixing black-and-white with color (guess which color), and passable-to-good acting performances.