Rosemary Vick

Rosemary Vick is the main villainess from the 2018 film, Searching.

She was played by Debra Messing.

Introduction
Rosemary Vick was introduced as a highly respected police detective, as she was shown receiving a medal for her duties, and it was also revealed that she had been running a rehab center for ex-felons. She was also introduced as the detective in charge of the case involving missing teenager Margot Kim, with the official intro taking place during a phone call between Rosemary and David Kim (Margot's widowed father and the film's main protagonist).

The investigation into Margot's disappearance revealed that she had been saving up every $100 bill she was given for piano lessons and put the money into her account, which was also shown to have had $2500 withdrawn. Rosemary uncovered video footage of Margot leaving town, as well as a fake ID, which led to Rosemary telling David that this was a case of Margot simply running away from home. However, David recognized Barbosa Lake as the spot that was just minutes from where Margot was last seen, and once he drove there, he found Margot's Pokemon keychain and phoned Rosemary. Once there, Margot's car is fished out of the lake, but she was not inside, after which Rosemary announced that this was a case of abduction. The car also had the $2500 that was withdrawn from Margot's account.

Rosemary cut David out of the investigation after he assaulted a male teenager who mockingly wrote that Margot was with him, but after seeing messages between Margot and Peter Kim (David's brother) that looked suspect, David began suspecting that Peter had something to do with his niece's disappearance. David's attempt to get recorded proof resulted in Peter admitting that he gave Margot marijuana, with the reveal coming during Rosemary's various attempts to contact David. After David finally answered, Rosemary informed him that they captured Margot's abductor, and later on, a man named Randy Cartoff confessed to not only abducting Margot, but to raping her and killing her. Cartoff was said to have committed suicide following the confession, which ended up closing the case.

Reveal
While David was sending photos of Margot on a website known as Memorial One, he noticed that the woman featured as a model for the site was the same woman who was known as "fish_n_chips":  the person who spoke to Margot via Snapchat. In a bigger twist, David's phone conversation with the woman, named Hannah Padry, had Hannah saying that she didn't even know Margot or know what Snapchat was. His attempt to call Rosemary resulted in him talking to a woman who works for the police department--who revealed that Rosemary volunteered for the case and wasn't assigned as Rosemary originally claimed. David's search into Rosemary's history revealed that Randy Cartoff and the man shown next to Rosemary in the rehab photo were one in the same, which revealed the truth:  Rosemary was involved in Margot's disappearance.

Months prior, Rosemary's son, Robert, found Margot on Snapchat, as he had known her since grade school and had a crush on her. Robert was the one who connected with Margot as "fish_n_chips," using Hannah's photo as part of the ruse. His plan involved telling Margot that his mother was battling cancer and that he needed money, which led to Margot making the withdrawal. However, upon seeing Robert at Barbosa Lake, Margot realized that she was scammed and attempted to call David, leading to Robert catching up with her. A struggle followed and ended with Margot pushed into a ravine, and after this, Robert called Rosemary for help. Without hesitation, Rosemary covered up for her son and staged the scene as a homicide, which included dumping Margot's car--money and all--into the lake. The villainess also deceived David by creating the fake ID as part of her plan to make Margot look like a runaway, and once she joined the investigation, Rosemary drew police away from Margot's location. As for the "confession," the evil Rosemary drugged Cartoff and told him to give the scripted confession, after which she shot Cartoff to death and staged it as a suicide. The "confession" and Cartoff's death closed the case, and also covered up Rosemary's heel persona and her son's actions.

Rosemary was spotted at the vigil for Margot, where David appeared with a collection of police officers after he figured out Rosemary's true role. The live stream of the vigil lagged, but it was revealed that Rosemary was arrested for her various crimes. Rosemary confessed to her crimes a week later in a prison interview, while also stating that she believed that Margot was dead due to the fact that she was without water for five days. During the search, a rainstorm occurred, meaning that Hannah (who was found in the ravine alive) was without water for just two days. Regarding her reasoning for her villainous actions, Rosemary stated that her son couldn't survive prison, and that she committed her crimes to protect him.