potential spoilers
The Station Agent:
Finbar McBride, a quiet, withdrawn, unmarried man with achondroplasic dwarfism, has a deep love of everything related to railroads. He works in a Hoboken model train hobby shop owned by his similarly silent friend Henry Styles. Because he feels ostracized by a public that tends to make fun of his size, Fin keeps to himself. Henry dies unexpectedly, and Fin learns he left him a piece of rural property with an abandoned train depot on it. He moves into the old building hoping for a life of solitude, but he quickly finds himself reluctantly becoming enmeshed in the lives of his neighbors. Joe Oramas, a thirty-year-old Puerto Rican American, is operating his father's roadside snack truck while the man recovers from an illness, and Olivia Harris is a forty-year-old artist trying to cope with the sudden death of her young son two years earlier and the ramifications it has had on her marriage to David, from whom she is separated. Cleo is a young African American girl who shares Fin's interest in trains and finally convinces him to lecture her class about them. Emily is the local librarian, a young woman dismayed to discover she is pregnant by her ne'er-do-well boyfriend.
Joe, relentlessly upbeat and overly talkative, soon cracks through Fin's reserve. The two begin to take daily walks along the tracks, and when Olivia gives Fin a movie camera to film the passing trains, Joe pursues them in his truck while Fin captures them on film. The three forge a tentative friendship that is threatened when Olivia descends into a deep depression. Meanwhile, Emily seeks solace from Fin, who slowly is realizing interaction with other humans may not be as unpleasant as he thought.
The Visitor:
Walter Vale is a widowed Connecticut College economics professor who lives a fairly solitary existence. He fills his hours by taking piano lessons with Karen in an effort to emulate his late wife, a classical concert pianist, and works on a new book, although his efforts at both are not producing encouraging results. When he is asked to present a paper at an academic conference at New York University, he hesitates to comply, given he is only the nominal co-author and never even read it. Charles, his department head, persists, and Walter is forced to attend.
When he arrives at the apartment he maintains in Manhattan, he is startled to discover a young unmarried couple living there, having rented it from a swindler who claimed it was his. They are Tarek, a Syrian djembe player, and Zainab, a Senegalese designer of ethnic jewelry, and both are illegal immigrants. Although they have no place to go, they hastily pack and leave, but Walter follows them and persuades them to return. Over the next few days, a friendship slowly develops. Tarek teaches Walter to play the drum, and the two men join a group of others at an impromptu drum circle in Central Park.
En route home, Tarek is mistakenly charged with subway turnstile jumping, arrested for failing to pay his fare, and taken to a detention center for illegal immigrants in Queens. In order to prevent Tarek's deportation from the United States, Walter hires an immigration lawyer. Feeling uncomfortable about remaining in the apartment with Walter, Zainab moves out to live with relatives in The Bronx.
Tarek's mother Mouna unexpectedly arrives from her home in Michigan when she is unable to contact her son. Also in the States illegally, she accepts Walter's offer to stay in the apartment, and the two develop a friendship. Walter confesses his life is unfullfilling; he dislikes the single course he has taught for twenty years, and the book he allegedly is writing is nowhere near completion. She reveals her journalist husband died following a lengthy politically-motivated imprisonment in Syria, and she is concerned about her son's future prospects if he is deported. The two begin to share a simple domestic existence, with Mouna preparing meals and Walter treating her to The Phantom of the Opera when she mentions her love for the original cast recording Tarek sent her as a gift.
Without warning, Tarek is summarily deported to Syria, and Mouna decides to follow him. Alone once again, Walter plays his drum on a subway platform, as Tarek once told him he himself would like to do some time.