Clarissa Pye

Episode 2: Lady Pye directs attention towards Clarissa’s opposition to building on Dingle Dell. An anonymous threatening letter brings that dispute into the murder investigation. The development supplies a recognisable motive, but its existence does not identify the writer or a killer.

Episode 5: Mary’s notebook points Pünd towards Clarissa as the author of the threat. The typewriter helps establish the connection. Clarissa acknowledges the letter and remains defiant about the benefit to the meadow, forcing the detective to distinguish her admitted action from the murder itself.

Episode 6: The final reconstruction gives the envelopes a different importance. Robert confuses them while disposing of Mary’s disclosure, and the letter associated with Clarissa becomes part of understanding that mistake. Her words contribute to the solution although she did not kill Magnus.

Claire Jenkins is the person to compare with Clarissa outside the manuscript. Alan takes elements of his sister's position and resentment and turns them into a fictional relationship with a wealthy brother. Pippa Haywood's two performances make that borrowing easy to recognise. It also makes the cruelty of the portrait easier to understand: Claire has to encounter a version of herself written by somebody who controls how readers will see it.

For a rewatch, keep two kinds of document separate. Clarissa's threat expresses her own anger; Mary's written disclosure concerns an older secret. They become connected through the handling of paper and envelopes, rather than because both women are making the same accusation. Following that distinction gives the final explanation its practical clarity. If you are still watching for the first time, use the episode 2 guide first and leave the later scene notes closed until the threat's authorship has been discussed on screen.