Full of comedy, mystery and suspense, Deathtrap has thrilled audiences for decades as Broadway’s longest running comic thriller. When a down-on-his-luck playwright becomes jealous of his student’s script, he hatches a plan to steal it; murderous mischief ensues. The clever play is full of twists and turns, leaving audiences surprised and charmed. The play opens tonight at 7:30 at the Hanna Theatre and runs through March 16. Showtimes vary, so check Playhouse Square’s website for details. Tickets are $15 to $70. (Stoops)