A young man develops severe neck pain after swimming in a polluted river for a movie shoot, but nobody can provide him any relief.

Three lonely young denizens of Taipei unknowingly share an apartment: May, a real estate agent who uses it for her sexual affairs; Ah-jung, her current lover; and Hsiao-kang, who's stolen the key and uses the apartment as a retreat.

A street vendor with a grim home-life forges a connection with a young woman on her way to Paris.