Disavowals

"And you're going to say 'it was good to know you' to the guy in the sexy hat . . . the guy you were going to marry today?" Promises, promises. Vows to do and vows to undo. A summer weekend in the Hudson Valley is supposed to be devoted primarily to the third marriage of psychologist Marguerite Ariston. However, a tangle of characters is forced by a variety of circumstances to unsnarl feelings about Marguerite and one another: her estranged parents; her reclusive half-brother; a teenage hitchhik