Becca and Heidi: Local playwright Sharon Eberhardt's new one-woman play about split personality and morality, 8:30 p.m. Thursdays-Saturdays, through Aug. 7, $15-$20, 454-7788 (information). Exit Theatre, 156 Eddy (at Taylor), 673-3847.
Dark Matter: The latest drama from Dooley author Harry C. Cronin concerns fallout from the indiscretions of a Catholic priest, 8 p.m. Fridays and Saturdays, 6:30 p.m. Sundays, through Aug. 8; $15-$20. Jon Sims Center for the Arts, 1519 Mission (at 11th St.), 554-0402.
Eclipsed:Patricia Burke Brogan's groundbreaking play about Ireland's Magdalene laundries and the women who were imprisoned there for so-called promiscuous behavior, 8 p.m. Wednesday, July 21, through Saturday, July 24, 3 p.m. Sunday, July 25; $15-$20. Magic Theatre, Fort Mason, Bldg. D, Marina & Buchanan, 441-8822.
I Need, I Want, I Tilt: The Tilted Frame company improvises an original play live each night incorporating digital video and the Internet, 8 p.m. Fridays and Saturdays, through July 31, $12-$15. Off-Market Theater, 965 Mission (at Fifth St.), 896-6477.
Murder:Second Wind Productions presents Hanoch Levin's drama about Israeli-Palestinian violence, 8 p.m. Fridays and Saturdays, through Aug. 15, $10-$16. Phoenix Theatre, 414 Mason (at Geary), Suite 601, 989-0023.
Shakespeare's R & J: The Red Jacket company presents a realistic, modern ensemble production of Shakespeare's tragic romance, 7:30 p.m. Thursday, July 22, through Saturday, July 24, 2 p.m. Sunday, July 25; $10. Bannam Place Theater, 50A Bannam Pl. (at Grant), 831-8067.
Water Tales:Inge Wessels and her crew of wisecracking puppets offer insights into San Francisco's maritime history; Water Tales, 1 and 3 p.m. Saturdays and Sundays, through Aug. 15, free. Hyde Street Pier, Hyde (at Jefferson), 556-3002.