Rebecca, a successful actress and her Mr. Mom husband, Tom, have two kids, a virtually nonexistent sex life, and a marriage counselor who is too baffled by the pair to offer any real help. Rebecca's slacker younger brother, Tobey, has been dating the exasperated Elaine for eight years but can't seem to commit to getting married and having a family. The status quo is given a serious jolt, however, when Tom is drawn into an affair with a mother at his son's school and Elaine finally gives Tobey an ultimatum, sending him into a fling with a sexy (and married) former college flame. When the fates of both couples culminate a very public finale on the stage at Lincoln Center, both Rebecca and Elaine will have to decide--do they trust the man?