A young man with Asperger's syndrome (a form of autism) attempts to forge a connection with his neighbor, whose big heart allows her to see beyond his limitations. But the rest of the world isn't as embracing, and some scenes depict others being hostile to him. Still, the woman who loves him does so wholeheartedly, with little judgment.
A young man explodes in frustration; he screams and throws objects around, and the woman with him is afraid. But the tantrum doesn't appear directed toward her. Instead, it's fairly clear that it's because he can't control his overwhelming emotions. Another screaming match ensues later between father and daughter.
Fairly frank discussion about sex and arousal. A couple has sex for the first time -- though there's no outright nudity, there's some kissing and tumbling in bed. She also places his hand in her bra. Later, a married man admits to having an affair.
Expletives are used pretty sparingly, but include words like "bulls--t," "f--k," "dick," "damn," "hell," and "oh God."