"Quai des orfevres" at 7:30 p.m. A love triangle with mistaken identity concerning the murder which is eventually resolved.

Holiday Sale

Printing and Graphic Arts Holiday Sale. Holiday cards, selected posters and Houghton Library publications suitable for gifts. Widener Library rotunda, 10 a.m.-3 p.m.

FM picks: Bach Society Orchestra

The ensemble performs works by Samuel Barber, Hovhaness, Ravel and Bloch. Paine Hall, 8 p.m. $5 for students. Tickets are available at Holyoke Center Ticket Office and at the door.

Theatre

The Flying Karamazov Brothers. Through Jan. 2. Experience the fun, hilarity, and astonishing dexterity of these master jugglers and vaudevillians in a show for the entire family. $18-$30. Cambridge Theatre Company at the Hasty Pudding Theatre, 8 p.m. 496-8400.

Darlene. The story of Sidney and Rose, two young urban professionals at the helms of their respective dating services, who look for love in all the wrong places. Loeb EX, 7:30 p.m.

Dracula. The Eliot House Drama Society presents the tale of a beautiful young woman who becomes the battleground between an infamous vampire and three men determined to save her life and soul. Eliot House Library, 8 p.m. $5; $4 for Eliot residents.

H.M.S. Pinafore. By William Gilbert and Arthur Sullivan. A rollicking song and dance show with an undercurrent of British satire and a splash of romance. Agassiz Theatre, 8 p.m. $3-$7 for students.

Pippin. Join us for a magical traveling players presentation. Experience Pippin's whirlwind tour of the trials of life. Watch as the players use their show to seduce Pippin into sacrificing his mediocre life in their explosive finale-and all for the glory of the troupe. Dunster House Dining Hall, 8:30 p.m. $3 for 1 ticket, $5 for two and $2 for Dunster residents.

Witness for the Prosecution. Get ready for murder, mystery, intrigue and mass confusion; this is Agatha Christie's other masterpiece. We'll stay true to '40s Britainplay with expectation and have a great time. Leverett Old Library, 8 p.m. $5, $4 for students, $3 for Leverett residents. 10 December Friday

Concert

Bach Society Orchestra. The ensemble performs works by Samuel Barber, Hovhaness, Ravel and Bloch. Paine Hall, 8 p.m. $5 for students. Tickets are available at Holyoke Center Ticket Office and at the door.

Mendelssohn String Quartet. Perform Hugo Wolf's Italian Serenade, Bartok's String Quartet No. 4 and Schumann's Quartet in A Major. Houghton Library, 8 p.m. $8 for students.