Wikipedia
After Wikipedia:
Osbourne Cox is a CIA analyst who quits his job at the agency after being
demoted, ostensibly because of a drinking problem. He then decides to write
his memoirs. His wife wants to divorce him and, at the counsel of her divorce
lawyer, she copies many of his personal and financial files off his computer
and onto a CD. The lawyer's receptionist accidentally leaves the disc at
Hardbodies, a health club. After her husband is served with divorce papers,
Katie changes the locks to keep him out of their house. An employee of the
gym, Chad Feldheimer, obtains the disc from the gym's custodian. Seeing the
content of the memoir, he assumes that it is highly classified information.
Along with his fellow employee Linda Litzke, he intends to use the disk to
blackmail Osbourne; Linda wants the money to pay for cosmetic surgery. Chad
meets Osbourne, who refuses; Linda decides to take the information to the
Russian embassy. At the embassy, she hands the disk over to the Russians,
promising that she will give more information afterwards. Because Linda and
Chad don't have any more information, they decide to break into Cox's house.
Osbourne's wife has been having an affair with Harry Pfarrer, a womanizing
Treasury agent. By chance he has recently met Linda online and begun an affair
with her as well. Chad stakes out the Coxes' house and breaks in when he sees
Harry and Katie leave. Harry, however, comes back, finds Chad, and
accidentally shoots him dead. Linda had told Chad to carry no ID and cut the
labels out of his clothes; when Harry sees this, he thinks Chad was a spy and
disposes of the body. Days later, paranoid since he killed Chad, Harry leaves
the Cox residence after a fight with Katie. On his way to leave, he manages to
tackle a man who has been trailing him for some time, thinking he was working
for the CIA or some other government agency. Harry now finds out that the man
is working for a divorce firm hired by his wife who, it is later revealed, has
been cheating on him as well. Harry is devastated and goes to see an agitated
Linda, who confides in Harry that her friend Chad is missing; he agrees to try
to help. The next morning, Harry and Linda meet in a park and she provides him
with more information about Chad's disappearance. When he realizes that Chad
is the man he killed, he becomes more paranoid and flees in terror, assuming
that Linda is also a spy. Linda then turns to Ted Treffon, the manager of
Hardbodies, who has feelings for her. Believing that the Russians have
kidnapped Chad, he agrees to look for more information in Osbourne's computer.
But Osbourne, finding that Katie has emptied their bank account, decides to
break into his own house with a hatchet to take her jewelry. Finding Ted at
his computer, Osbourne shoots him. Ted survives and runs out of the house, but
Osbourne grabs the hatchet and kills him in broad daylight. The movie ends by
returning to the CIA's headquarters, where an official and his director are
trying to sort out what happened: Chad is dead, Ted is dead, Osbourne is in a
vegetative state after being shot by an agent while attacking Ted, and Harry
and Linda have been arrested. Harry was trying to board a flight to Venezuela,
and the director decides to let him go so he's out of their hair. Linda
promises to remain silent if the CIA will finance her plastic surgery. The
baffled CIA agents agree to her terms, but decide that they have learned their
lesson: they will never repeat whatever it is that they did in this case,
though they are still not clear what it is they did or what they learned, if
anything.