Maisy Gibbons' series of unfortunate events shock the residents of Wisteria Lane when she is finally caught and arrested for prostitution. This leaves unexpected consequences for Bree and Rex when Maisys' little black book becomes public of all her clients.

Gabrielle and Carlos also face a crisis of their own when the sewer system goes out at their house. Also, Lynette braves a scandal herself when it's rumored that the twins started the school's head lice epidemic. Meanwhile, as Susan sinks into depression over her breakup with Mike, she finds a surprising ally.

The residents of Wisteria Lane celebrate their annual holiday block party. Meanwhile, Gabrielle sets her eyes on a father of a girl she's coaching. Mike is arrested for Monique's murder. Thanks to Lynette, mothers of the neighborhood arrange a protest against Art. This causes his sister a heart attack. And Susan has to cook dinner for Ian's parents.

Bree treats herself to a new car; Susan wants to send M.J. to the best school even though she and Mike can't afford it; Gaby tries to get back into shape; Lee wonders if he should tell Tom and Lynette some disturbing facts about Dave.

Susan gets a new job. Lynette tells Tom they need to sell Scavo's Pizzeria. Gaby discovers that Carlos' boss has a dirty little secret; Orson confronts Bree after discovering she has given Andrew a raise.

A chance encounter reunites Gaby with her sexy ex-lover and gardener, John Rowland; Bree contemplates a weekend getaway with Karl; Lynette and Tom break the news to their kids that she's pregnant again; and Susan is convinced Angie's son is responsible for her daughter's attack.

When Juanita’s party is on the verge of being ruined after Gaby is deemed a bad mom, Gaby is determined to prove she’s a responsible parent. Bree gets defensive when she’s judged by a motel maid for having an affair with Karl. Lynette is put off by her new handyman when he defers to Tom for approval on all things and Susan and Katherine come to blows over Mike.

Meanwhile, a lapse in judgment on Danny’s part leads to a terrible mishap that Angie and Nick must cover up.

"Would I Think of Suicide?" is the 120th episode of the ABC television series Desperate Housewives. It is the ninth episode of the show's sixth season and aired on November 29, 2009.

Gabrielle and Lynette's friendship is on the brink of collapse, whereas Bree and Orson come to an agreement about their marriage. Meanwhile, Susan hatches a plan to help an irrational Katherine, and Danny's vital mistake might cost Angie her freedom. In the meantime, Christmas cheer is curtailed when disaster strikes, as a plane crashes down on Wisteria Lane, putting lives in peril.

In the aftermath of the plane crash, the residents of Wisteria Lane think about what their lives might have been like had they made different choices. Susan contemplates a life with Karl had she not left him. Bree considers life without Orson. Lynette thinks about a future with her unborn twins. Carlos reflects on how Gaby would be as an over-protective mom and Angie ponders the consequences should her secrets be revealed.