History Film / Obsessed

* AbortedArc: There are quite a few plot points that are mentioned that really don't serve any purpose in the long run, such as Sharon's and Derek's history together in the old days at the company, or a discussion of a mutual friend cheating on his wife (which is why Derek decides not to tell her about Lisa) never being brought up again. This was played especially straight with the interracial aspect, in which there were plans for, but was apparently written out because the writer had just penned Film/''LakeviewTerrace'' very recently.

* AbortedArc: There are quite a few plot points that are mentioned that really don't serve any purpose in the long run, such as Sharon's and Derek's history together in the old days at the company, or a discussion of a mutual friend cheating on his wife (which is why Derek decides not to tell her about Lisa) never being brought up again. This was played especially straight with the interracial aspect, in which there were plans for, but was apparently written out because the writer had just penned Film/LakeviewTerrace very recently.

%%* AccentUponTheWrongSyllable: Idris Elba throughout the film.
%%* ActionMom: Sharon proves to Lisa ''very effectively'' why she shouldn't have messed with her family.

* LoveMakesYouCrazy: Rather than playing mind games for sport, Lisa's motive comes across as really wanting to be with Derek, and also attributes his rejection of her to circumstances rather than how he feels. However, it's possibly subverted, as it's implied by her more morally questionable actions (especially in the last half hour where she ends up resorting to deceitful and manipulative tactics) that she's somewhat conscious of Derek's desire to not be with her.

* LoveMakesYouCrazy: Rather than playing mind games for sport, Lisa's motive comes across as really wanting to be with Derek, and also attributes his rejection of her to circumstances rather than how he feels.

* AccentUponTheWrongSyllable: Idris Elba throughout the film.
* ActionMom: Sharon proves to Lisa ''very effectively'' why she shouldn't have messed with her family.

* [[ArentYouGoingToRavishMe Aren't You Going To Ravish Me?]]: Lisa tries to taunt Derek into being aggressive with her on multiple occasions.

* CatFight: The inevitable showdown between Sharon and Lisa.
* CoolOldGuy: Joe Gage, Derek and Ben's superior.
* [[ChekhovsGun Chekhov's Floor]]: The structural integrity of the boards in the attic.

* DoubleStandardRapeFemaleOnMale: Well, more like attempted rape, for [[AllMenArePerverts the same reasons above]].

* DullSurprise: Beyonce's acting.
* FlatCharacter [=/=] JerkAss: Derek’s best friend and colleague Ben, whose only role in the movie is to make jokes about Lisa's attraction to Derek and to continuously goad him into straying. [[spoiler: Though he comes to regret this later.]]
* FreezeFrameEnding: The final shot of the film.

* MamaBear: Sharon Charles when you try to break up her family and especially if you ''touch'' her son.

* PayEvilUntoEvil
* PetHomosexual: Patrick the [[strike:secretary]] assistant.

*

* StalkerWithACrush: Lisa Sheridan.
* StatuesqueStunner: Both Ali Larter and Beyonce are tall, beautiful women, at 5'8" and 5'7", respectively.

* [[ViolentlyProtectiveGirlfriend Violently Protective Wife]]: Sharon Charles when you try to take her man.

* {{Yandere}}: Lisa for Derek. She starts off having an innocent crush on Derek as she starts her new job in his office. As the movie progresses, she becomes an obsessive and manipulative stalker who believes she and Derek are together. She attempts suicide after he spurns her feelings and she does everything she can to split him and his wife up.

* AdultFear: The thought of your infant child being kidnapped by a mentally deranged woman who poses as a threat to you and your family...

* {{Yandere}}: Lisa for Derek. She starts off having an innocent crush on Derek as she starts her new job in his office. As the movie progresses, she becomes an obsessive and manipulative stalker who believes she and Derek are together. She attempts suicide after he spurns her feelings and she does everything she can to split him and his wife up.

[[quoteright:286:https://static.tvtropes.org/pmwiki/pub/images/obsessed_poster_3122.jpg]]
[[caption-width-right:286:Black and white text... Go figure.]]

A 2009 thriller/drama directed by Steve Shill and starring Music/{{Beyonce}} in her first serious role that doesn't relate to music.

Successful businessman Derek Charles (Creator/IdrisElba) is doing very well for himself. He has a beautiful wife (Knowles), an adorable son, and his family and he have just moved into their first house together. But after meeting an office temp named Lisa (Creator/AliLarter) on the way to his office, it soon becomes clear that his wife is not the only woman with feelings for him, and the harmless flirting of a crush quickly becomes quite a bit more serious than anyone expected.

* BenevolentBoss: Derek.

* SassyBlackWoman: Sharon.

* FlatCharacter [=/=] JerkAss: Ben, whose only role in the movie is to joke about Lisa's attraction to Derek and to continuously goad him into straying.

* WhatHappenedToTheMouse: Derek’s best friend and colleague, Ben, is prominently featured in the first and most of the second act. He is last seen when Sharon calls him about Derek’s whereabouts and he reluctantly hints at an affair with Lisa. Aside from one brief name-drop, he isn’t seen again for the rest of the film.

* WhatHappenedToTheMouse: Derek’s best friend, Ben, is never seen again after Sharon calls him about Derek’s whereabouts.

* {{Yandere}}: And how!

* VagueAge: The Charles' son. The boy is clearly a toddler, Sharon mentioned at the beginning that he was two, yet he doesn't speak a word throughout the film (not even baby talk) and Sharon later mentioned that he was conceived after Derek came home after ''last year's Christmas party'' drunk.

* AdultFear: The thought of your infant child being kidnapped by a mentally deranged woman who poses as a threat to your family...

* DrivenToSuicide: [[spoiler: Though, one might question if this was a genuine desire to die, or a desperate attempt for attention]].

* AdultFear: The thought of your infant child being kidnapped by a mentally deranged woman...