Lauren Mauldin (Thora Birch) is a strong-willed but misguided young woman who encourages her millions of blog followers to apply her scientific formula to all relationships in order to prevent heartache. If you follow her six-month "PIG Theory", you will always have the upper hand and you will Never be cheated on! Her plan works smoothly until her sister Gena introduces her to the charming and undefeated women's advocate attorney, Calvin Chesney (Chris Klein). Calvin refuses to believe human connections can be so easily categorized. He challenges Lauren to a competition to prove her theory wrong. He'll pick five of his closest friends to be tempted by Lauren's beautiful bait. If three out of five cheat, Calvin must admit defeat and never speak to Lauren again. But if three out of five resist temptation, Lauren must shut down her blog and date Calvin like a normal person, with no expiration date.
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