After a hot tour of the fest circuit this year, Radius-TWC‘s The One I Love hits theaters on Aug. 22. Marking the feature directorial debut of Charlie McDowell, the romantic comedy follows Ethan and Sophie, a thirtysomething couple on the verge of separation, who make a quick vacation escape to rekindle their love life, only to see offbeat results. Screenwriter Justin Lader churned out a 50-page script with suggested dialogue, giving Mark Duplass and Elisabeth Moss the opportunity to improvise their lines.  Take a look: