400 Days centers on four astronauts sent on a simulated mission to a distant planet to test the psychological effects of deep space travel. Locked away for 400 days, the crew's mental state begins to deteriorate when they lose all communication with the outside world. Forced to exit the ship, they discover that this mission may not have been a simulation after all.
When mysterious spacecraft touch down across the globe, an elite team - led by expert linguist Louise Banks - is brought together to investigate. As mankind teeters on the verge of global war, Banks and the team race against time for answers - and to find them, she will take a chance that could threaten her life, and quite possibly humanity.
College student Jeffrey Beaumont returns to his idyllic hometown of Lumberton to manage his father's hardware store while his father is hospitalized. Walking though a grassy meadow near the family home, Jeffrey finds a severed human ear. After an initial investigation, lead police Detective John Williams advises Jeffrey not to speak to anyone about the case as they investigate further. Detective Williams also tells Jeffrey that he cannot divulge any information about what the police know. Detective Williams' high school aged daughter, Sandy Williams, tells Jeffrey what she knows about the case from overhearing her father's private conversations on the matter: that it has to do with a nightclub singer named Dorothy Vallens, who lives in an older apartment building near the Beaumont home. His curiosity getting the better of him, Jeffrey, with Sandy's help, decides to find out more about the woman at the center of the case by breaking into Dorothy's apartment while he knows she's at work.
A creative and driven teenager is desperate to escape his hometown and the haunting memories of his turbulent childhood.
Takakura is a former detective. He receives a request from his ex-colleague, Nogami, to examine a missing family case that occurred 6 years earlier. Takakura follows Saki's memory. She is the only surviving family member from the case. Meanwhile, Takakura and his wife Yasuko recently moved into a new home. Their neighbor, Nishino, has a sick wife and a young teen daughter. One day, the daughter, Mio, tells him that the man is not her father and she doesn't know him at all.