7Days: Regional arts and entertainment

Sunday Elf detective In Bill D'Agostino's Murray the Elf and the Case of the Missing Mistletoe, the eponymous hero is recalled from the shopping mall by Mrs. Claus to come to the North Pole to solve a mystery. The show goes on at Act II Playhouse, 56 E. Butler Ave., Ambler, at 11 a.m. Sunday and Friday, 2 p.m. Saturday, and 11 a.m. next Sunday. Tickets are $12; $8 ages 12 and under. Call 215-654-0200.