user: What's the synopsis of the film 'How Do You Know'?

assistant: After being cut from the USA softball team and feeling a bit past her prime, Lisa finds herself evaluating her life and in the middle of a love triangle, as a corporate guy in crisis competes with her current, baseball-playing beau.

user: That synopsis is kind of short. Can you provide a more detailed explanation?

assistant: Sure: 

Softball player Lisa Jorgenson begins dating Matty Reynolds, a pitcher for the Washington Nationals. She also receives an intriguing phone call from a young executive, George Madison, who was advised by a friend of Lisa's to give her a call. George calls out of politeness because he wants to explain that his relationship with his girlfriend has just become more serious.

Life takes an abrupt turn for the worse for George when he suddenly finds himself the target of a federal criminal investigation for corporate malfeasance at a company run by his father, Charles Madison. He is fired from his job and abandoned by the company, with the exception of his father and his pregnant secretary, Annie.

Still reeling from this blow, George goes to his girlfriend for sympathy and is stunned when she immediately breaks up with him. At the same time, Lisa is devastated when she is left off the Team USA roster.

On a whim, George calls again to invite Lisa to lunch and she accepts. It turns out to be a disaster; he is so overwhelmed with his troubles that she eventually asks that they just eat in silence, and they part ways not expecting to see one another again. Unsure what to do next, Lisa moves in with Matty, who has a penthouse in the same upscale building where George's father lives. Matty is rich, well-meaning and fun, but is also immature and insensitive, and continues to have casual affairs with other women.

George is indicted and could face prison time. Annie is so loyal that she tries to give him inside information in advance, but he urges her not to lose her own job. George and Lisa bump into each other in Matty's building and he offers to help her carry her groceries home. Matty returns home and is upset to find Lisa at “his place” with an uninvited guest.

Matty inadvertently offends her, so Lisa moves out and spends a pleasant, tipsy evening at George's modest new apartment. His father then drops one last bombshell on his son: It was he who committed the illegal act for which George is being charged. Due to a previous conviction, Charles would spend at least 25 years — basically, the rest of his life due to his advanced age — in prison, whereas George would only do three years at most.

On the night Annie's baby is born and her boyfriend proposes, Lisa begins to reconsider her previous reluctance to settle down. George is clearly smitten with her, but Matty pleads for another chance, and she accepts. George makes a proposition to his father: he will take one more shot at persuading Lisa to be with him. If she does, Charles must go to jail, and if she doesn't, George will take the rap for his dad.

At a birthday party that Matty throws for Lisa, George confesses his feelings for her and asks her to meet him downstairs if she decides she reciprocates them. He then leaves the party and goes downstairs to give her time to think it over. Finally, Lisa says goodbye to Matty and joins George outside. Charles, looking on from above smiles at the sight, but his smile soon fades as he realizes he has to go to jail.

Lisa is confused about her feelings and tells George, "I thought you were this silly guy. Now it's like... everything but you seem silly." George suggests she had never felt the kind of overwhelming love where the guy is the whole deal, which helps her realize that she's in love with him. Lisa then reaches out and holds his hand and we see them board a bus together.