The movie is comprised of several vignettes, each presenting a character along with his or her foil: a staid accountant shares an apartment with a (i) musician; a tight-lipped divorcee on a cross-country roadtrip picks up a (ii) hitchhiker; and finally, and perhaps most unconvincingly, an introverted mathematician falls in love with a (iii) arriviste.
Blank (i)
colorful
insatiable
eminent
Blank (ii)
garrulous
untrustworthy
forlorn
Blank (iii)
unpredictable
gregarious
bumbling