Saturday, Oct. 6, 6:30-9 p.m.: ‘Who-Dun-It’ mystery party for ages 21 and up at Riverhead Free Library. Doors open 6 p.m., Italian buffet, wine and soft drinks at 6:30 p.m., “Who-Dun-It” program at 7:30 p.m. Knock ‘em Dead Comedy will lead the evening full of music and laughter, but it’s up to you to solve the mystery. Tickets: $40. Register: 631-727-3228, riverheadlibrary.org.
Management Productions presents a ‘Summer Revue’ at Vail-Leavitt Music Hall, 18 Peconic Ave., Riverhead. Featuring sketch comedy, live music and short films. Admission: $10. Tickets available at tinyurl.com/barietyshow or at the door. 631-745-0124.