Elsbeth Season 2 Episode 4: Diamonds Are for Elsbeth

At Vivienne's, a Fifth Avenue jeweler with a members-only floor, Roslyn Bridwell arrives with her friend Celeste, promising to put in a good word for her membership. Their regular associate Judith mentions that she is retiring soon and hands them over to Valentina, the new creative director, who pauses all new membership applications until the rebrand is finished and refuses to show Roslyn a pair of earrings without proof of funds — a rule she says associates like Judith never enforced.

A call to her accountant shows Roslyn has just under $1 million left in her trust account, an unlivable sum in her view. Celeste, whose frozen yogurt brand is failing, tells her drunk to just take back what Vivienne's took from her, and the idea stops being funny.

Roslyn recruits Judith over the first lunch the two have ever shared, citing Valentina's disrespect, and Celeste supplies Hughie, who makes her knockoff bags and will make the fakes. The plan exploits the reopening gala, where members may borrow pieces from the collection to wear for one night inside the store. They still need a rare gem expert to vouch for the fakes. That expert is Claude, a Vivienne's employee who also polishes clients' silverware — the pretext Roslyn uses to get him alone after hours.

He refuses, says he never liked her, calls her trash, and heads off to call Valentina, who has just promoted him. While he is gone Roslyn uses the spoon he was cleaning to stir silver polish, which contains cyanide, into his tea. He returns, drinks, and dies almost immediately. Roslyn stages herself as a second victim, leaving lipstick on both rims of her cup and then drinking cup after cup of apple juice.

Elsbeth and Kaya arrive at Vivienne's, where Detective Donnelly and Valentina have already accepted the crime-scene unit's ruling of accidental poisoning. Roslyn tells them she saw Claude polishing her candlesticks and that they shared tea; Elsbeth notices lipstick on both the outside and inside rim of the cup, which would make drinking difficult, at which point Roslyn gracefully faints onto a sofa. At Roslyn's apartment Elsbeth finds an extreme amount of apple pulp in the trash, which Celeste covers by claiming they are testing frozen yogurt flavors.

Captain Wagner reports that the medical examiner has formally ruled the death an accidental cyanide ingestion and tells them to back off during the reopening; he also hands out raffle tickets for a free lunch with him.

Kaya, whose own apartment is being renovated, moves in with Elsbeth and presents a standard rental agreement. When they go out for frozen yogurt they find Celeste's stores permanently closed and the company in bankruptcy, and a search turns up the fact that apple seeds contain trace amounts of cyanide — enough to make Roslyn's blood test look like poisoning. Back at Vivienne's, Elsbeth leans on Valentina with the threat of a lawsuit and learns that Roslyn emailed her proof of funds a day after Claude died. Kaya tests the document and finds it AI-generated.

Judith, questioned, admits she is being pushed out at quarter's end, and Donnelly joins the investigation because she has always wanted to bust a jewelry heist.

Elsbeth calls on Roslyn with an apple pie, and Roslyn hides Judith in a closet. Elsbeth notices that the beautifully set table — fine china, silver dishes, candlesticks, all from Vivienne's — has no silverware, and spots Judith's distinctive work jacket over a chair. In the evidence from Vivienne's Elsbeth finds the spoon with cyanide residue, from the same collection as Roslyn's dining set, and notes that both candlesticks are still tarnished: Claude never polished them, he was polishing the spoon. Roslyn had hidden the silverware because the set was missing its spoon.

Wagner authorizes bringing Judith in, and under good-cop-bad-cop questioning she confesses to the heist and says she knew Roslyn killed Claude, though not how.

At the gala, Roslyn signs out her loaned pieces with Judith's help while Celeste distracts Valentina. Roslyn floods the fifteenth floor so Hughie can be brought in as a handyman to swap the stones, with Judith clearing the floor. Roslyn then cannot resist taking the missing spoon off the display, and Elsbeth, Kaya, Donnelly and Wagner catch her there. The gap in the chain closes when Roslyn accounts for the silver: her mother bought the set off her wedding registry. Roslyn and Hughie are arrested. Elsbeth tells Judith, within Roslyn's hearing, that a deal has been made with the DA.

The next day Celeste calls Elsbeth and Kaya to Roslyn's apartment, where the jewelry she was supposed to sell for Roslyn's defense is gone. A replay shows that while Roslyn hid Judith in the closet, Judith took the collection for herself. The closing shot is Judith living well in Paris.

The solution is a missing spoon. Roslyn's table is laid with Vivienne's china, silver dishes and candlesticks but no silverware, because the set her mother bought off her wedding registry is one spoon short — the spoon Claude was polishing when she used it to stir cyanide-laced silver polish into his tea. Both candlesticks are still tarnished, which disproves Roslyn's claim that Claude spent the evening polishing them.

Roslyn's own cover is what collapses first. The lipstick on both rims of her cup shows she never drank the tea she claims poisoned her, and the apple pulp in her trash explains how her blood tested positive anyway: apple seeds contain trace amounts of cyanide, and she drank enough juice to imitate victimhood. Her proof of funds turns out to be AI-generated, which supplies the motive — she could not have paid for anything she walked out with.

At the gala, Roslyn's crew executes almost exactly as planned: Judith signs out the loaned pieces, Celeste distracts Valentina, a flood on the fifteenth floor gets Hughie in as a handyman, and the stones are swapped. Roslyn is caught because she goes back for the missing spoon to complete her set. With Judith's confession and the silverware accounted for, Roslyn and Hughie are arrested.

The final reversal belongs to Judith. She has been telling the truth about the heist and has taken a deal with the DA, but when Roslyn hid her in a closet to keep Elsbeth from seeing her, she helped herself to Roslyn's jewelry collection. Celeste arrives the next day to find the jewelry she was meant to sell for Roslyn's defense gone, and the last shot is Judith living well in Paris.