->''"And there are those people who are [[TitleDrop catfish]] in life. And they keep you on your toes. They keep you guessing, they keep you thinking, they keep you fresh. "''
-->-- '''Vince Pierce''', Abby's father.

Yaniv 'Nev' Schulman is a photographer living with his brother Ariel 'Rel' Schulman and Rel's filmmaking partner, Henry Joost. After one of Nev's photos is featured in a newspaper, he is sent a painting of his photo by 8 year old Abby. [[ChildProdigy Abby is eloquent and gifted for her age]] and she and Nev begin talking, first through letters then through FaceBook. At this point Ariel and Henry begin recording this relationship hoping to create a {{Documentary}} about Abby. Eventually Nev's correspondence extends to include Abby's family, including her mother Angela and her half-sister Megan. As Nev and Megan begin to develop a relationship, Nev, Ariel, and Henry decide to expand the documentary to be about NewMedia relationships, especially the budding romance between Nev and Megan.

MTV recently turned the film into a series, in which Nev helps people meet their "catfish" - people using online personas, real, faked, or otherwise.
!!Catfish provides examples of:

* AllThereIsToKnowAboutTheCryingGame:
** [[spoiler: Megan is a fictitious person made up by Angela.]] This [[TheReveal reveal]] was spoiled when news outlets started following the story of American football player Manti Te'o's girlfriend.
** Due to this film, "catfishing" has entered the modern parlance to indicate someone posing as someone else online. As such, it's reached ItWasHisSled territory.
* ChildProdigy: Abby [[spoiler: although not really.]]
* DefeatMeansFriendship: [[spoiler:Bizarrely enough, the person behind "Megan" and Nev became friends.]]
* FaceBook: That's where Nev meets Abby's family.
* {{Foreshadowing}}: [[spoiler: Ariel's incredulity at "Angela's" photo, Nev's claims of Megan's LarynxDissonance.]]
* LifeImitatesArt: The film jumped in popularity, or at least in references, after American football player [[http://deadspin.com/5976517/manti-teos-dead-girlfriend-the-most-heartbreaking-and-inspirational-story-of-the-college-football-season-is-a-hoax Manti Te'o]]'s girlfriend Lennay Kekua was revealed as a "catfish."
* {{Mockumentary}}: Has been accused of actually being this and not a real documentary.
* NewMediaAreEvil: [[spoiler: The implication of the movie. [[JustifiedTrope Justified]] if it's real.]]
* Website/{{Youtube}}: An instrumental plot point hinges on a couple of Website/{{Youtube}} videos.