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A successful Manhattan couple, real estate agent Meryl Judith Morgan (Sarah Jessica Parker) and lawyer Paul Michael Morgan (Hugh Grant) are separated because of Paul's infidelity. But they are thrust together when they witness a murder and become targets of a contract killer.

Federal marshalls whisk away the Morgans from their beloved New York to tiny "Ray, Wyoming," where they are temporarily put in the custody of the Wheelers (Sam Elliott and Mary Steenburgen), a married couple who are U.S. marshalls. They use the assumed names of Meryl and Paul Foster, who are visiting their cousins, the Wheelers. The killer, meanwhile, tries to track them down.