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After being dumped by her boyfriend, Ryan (John Krasinski), for no discernible reason, graduate student Sara Quinn (Julianne Nicholson) searches for answers by embarking on a unique research project. She interviews a variety of men about their impulses, motives and relationships with women. But, as she probes the perplexing psyches of unfaithful, womanizing and embittered males, she's unprepared for their often disturbing responses -- and what they say about the truth of human behavior. Wikipedia