The drama-comedy tells the story of Setsuko Kawashima (Terajima), a lonely, chain-smoking office lady in Tokyo who is past her prime. After deciding to take an English class, she discovers a new identity in her American alter ego, 'Lucy,' and falls for her instructor, John (Hartnett). When John suddenly disappears, Setsuko earnestly sets out on a quest to find him, eventually leading her to the outskirts of Southern California. Written by Oh Lucy!

Abby, four years out of college, an aimless child of privilege, comes to Tokyo to be with her boyfriend, who promptly leaves for Osaka. She wants to stay in Tokyo in hopes he'll come back to her, but she's miserable: she speaks little Japanese and has a dull job as a law-firm gopher. She stumbles into the neighborhood ramen shop operated by the aging master chef Maezumi and his wife Reiko. His soup cheers Abby, so she decides to apprentice herself to him. He's uninterested, she's insistent, so...