After drinks at a favorite Chicago hang-out, Danny Martin and Debbie Sullivan head to Danny's place to indulge in the predictable single's quest -- the one-night-stand. Their affair is casual,...

After drinks at a favorite Chicago hang-out, Danny Martin and Debbie Sullivan head to Danny's place to indulge in the predictable single's quest -- the one-night-stand. Their affair is casual, sensual, and supposedly over until something surprising happens--they want to see each other again. It's the start of an intense relationship that irritates Danny's rowdy best friend and astounds Debbie's cynical buddy/roomie, who do everything possible to break them up. but, Danny and Debbie wind up living together, and amidst the daily drudge of domestic life, they begin to realize that making love is easy, saying "I love you" more difficult, and being in love the hardest of all.