DESPERATE HOUSEWIVES - "A Little Night Music" - Angie comes face to face with her ex, Patrick Logan (John Barrowman), after years on the run, SUNDAY, MAY 2 (9:00-10:01 p.m., ET) on ABC's "Desperate Housewives." Meanwhile, Gaby and Susan plan an elaborate scheme against their husbands, Lynette sees a darker side of Eddie, and Bree meets a woman who knows Sam all too well. (ABC/RON TOM) TERI HATCHER, JAMES DENTON