WEEKEND HIGHLIGHTS: FEB. 17–19

*FRIDAY, FEB. 17

POST-VALENTINE’S Now we have reached the darkness with a romantic ghost story. “Blood Rose Rising” marks its debut Friday night with a little twist. The play draws on supernatural themes with live-action and an episodic story trajectory. The so-called Pilot Episode, “Immaterial Girl” runs through April 7. The show was created by Ben Evett and co-written by Steve Barkhimer of Boston. Check website for full schedule. Feb. 17, 8 p.m. Tickets $25—30. Davis Square Theatre, 255 Elm St. www.bloodroserising.com

I AM DIZZY Razormaze, Acaro and Bring the Knife get ready to slice you up with some sharp tunes. Feb. 17, 9 p.m. Tickets $10. Radio, 379-381 Somerville Ave. www.radiobarunion.com

*SATURDAY, FEB. 18

MEATS, FISH & BREAD OH MY The Somerville Winter Farmer’s Market returns. The usual rotating guest of vendors will return, as well as some live entertainment and children’s activities. Feb. 18, 9:30 a.m.—2:30 p.m. Center for Arts at the Armory, 191 Highland Ave. www.artsatthearmory.org

NO MAN’S LAND On Saturday night you will enter a new dimension when Booty Vortex controls the disco party. Brace yourself fool. Feb. 18, 9:45 p.m. Tickets $12 ($3 online fee). Johnny D’s Uptown Restaurant & Music Club, 17 Holland St. www.johnnyds.com

*SUNDAY, FEB. 19

THANK YOUR PRESIDENTS What better way to thank the American presidents than to zonk out at Science Fiction films for twenty-four hours straight? SF37: Boston Sci-Fi Film Marathon starts at noon and takes off through the night. There will be classics, shorts, new movies and other lost gems to control your brain. Maybe a man dressed in tin foil will hand you a prize. Thomas Jefferson would be so jealous. Feb. 19, Noon—Monday, Feb. 20, Noon. Tickets $60. Somerville Theatre, 55 Davis Sq. www.somervilletheatreonline.com

DUBLIFY The Dub Apocalypse play their weekly set bringing the dirty beats and world-ending improvisational charm. Feb. 19, 10 p.m. Cash cover at the door. Bull McCabe’s, 366 Somerville Ave. www.bullmccabesboston.com