About Last Night..., based on a play by David Mamet, is a 1986 film starring Demi Moore and Rob Lowe. In Chicago, Debbie (Demi Moore), an art director for an ad agency, meets Danny (Rob Lowe), a salesperson, at a softball game. The two have a one-night stand but feel a deep connection and continue to meet at bars. Their affection grows, but Debbie and Danny are afraid to commit to a long-term relationship. Danny's best friend, Bernie (Jim Belushi), resents the time Danny now spends with Debbie. Meanwhile, Debbie's best friend and roommate, Joan (Elizabeth Perkins), is a frustrated kindergarten teacher who becomes jealous of Debbie's relationship and disapproves of the boorish Bernie. The film follows Debbie and Danny across the tumultuous first year of their relationship, as they break up, get back together, break up again, and try to figure out whether they are really in love with each other.