Two Night Stand
Megan (Analeigh Tipton) and Alec (Miles Teller) are two strangers who message each other through online dating and have a regrettable one night stand. The next morning, they wake up to find that they are snowed in and can't leave Alec's apartment.
They actually discover that they have a lot more in common than they thought and spend the next day getting to know each other. They end up breaking into Alec's neighbor's apartment to use the bathroom when Alec's toilet gets clogged.
Eventually, Megan and Alec have sex again, to much greater success. As Alec is getting breakfast for Megan, she opens his closet to find women's clothes and pictures of Alec with another woman. He confesses that he is living with a girl named Daisy, who is out of town, but he found a note in her purse that said she was dumping him. When the snow clears, Megan angrily storms out.
Daisy comes home and Alec confronts her about the note and they break up. Megan is at a New Year's Eve party, when she is arrested by police. Alec planted an apology note Megan wrote to Alec when she tried to leave in Alec's neighbor's apartment, making it look like she broke in.
Alec bails Megan out and tries to apologize with a balloon, telling her that she'll laugh about it one day. Megan contemptuously tells Alec that she'll only talk to him when that day comes and tells him to leave.
After Alec leaves, Megan looks at Alec's balloon, which reads, "I'm sorry I'm an asshole." Megan laughs at this and realizes that now she has to call Alec. She does and they kiss and make up.