"The landlady, Miss Nezu, is an efficient type who regularly visits odd octogenarian Mrs. Okubo (who screams each day at noon "so people will know I am still alive") and reveals to Mr. Shibuya the empty flat papered with sketched self-portraits where she spends most of her free time. Another tenant, Ochiai, is a young American-Japanese student neglected by her party-girl mom and obsessedwith getting perfect grades, while a more mysterious female neighbor is stalked by a stranger who turns out to have a unique financial relationship with the woman.
Narrative arc, such as it is, comes to a head when Mrs. Okubo heads to the roof in expectation of being picked up by mysterious forces, the Shibuyas try to elude the irate owner of the sports car, and the hit man wakes up." -- asian wiki