Wed.–Sun., Feb. 23–March 4. Veronica Long directs local actors in Agatha Christie’s intricate 1952 murder mystery thriller about newlyweds who transform their inherited English manor house into an inn. On opening day, amid rumors of a murderer at large, the inn’s somewhat questionable guests become snowbound, and after an unexpected discovery begin eyeing each other fearfully. “One of the most skillfully written murder mysteries ever produced,” notes the New York Times. Cast includes Mei-Lin Wong, Gavin Allen, Sam Johnson, Jan Romans, Larry Rusinsky, Eƶra Korycinski, Avery Koenig, and Russ Schwartz. 8 p.m. (Thurs.–Sat.) & 2 p.m. (Sun. & Wed.), Riverside Arts Center, 76 N. Huron, Ypsilanti. Tickets $20 (students, seniors, & active military, $15) in advance at ptdproductions.com and at the door. 483–7345.