Years after its original run, Knots Co-Executive Producer Michael Filerman recalled that soap giant Ann Marcus mapped out Season 4 before departing the series at the end of Season 3. No one has ever corroborated that, not even Marcus in her autobiography, so it's likely he was misremembering; nonetheless, in the way it effortlessly juggles half a dozen down-to-earth story-lines, yet manages to remain character- rather than plot-driven (particularly impressive in light of the conceit at its core), it feels very much like a Marcus season.
The conceit at its core? Well, it's a murder mystery. Knots Season 4 makes good use of its regulars, tosses in two of its most memorable supporting players, and near the season's end, embroils them all in a whodunnit, where a good chunk of the cast seems to have motive. But the murder (of rising singer Ciji Dunne, played by Lisa Hartman) isn't telegraphed -- in 1983, believe me, it came as quite a shock -- and the fact that so many of the principals are suspects doesn't feel contrived. The final episodes are less about an investigation than about the way we respond to tragedy: in particular, the blame games we direct both at others and at ourselves.