The doors will open at The Hall at Old Town tonight at 6:30, kicking off the three-night run of The Sooner Theatre’s annual murder mystery musical dinner theatre. By tradition, this year’s original musical “Death at Rehab: A Murderous Mystery Tour” is written and performed by community members and will serve as a fundraising event for Norman’s Sooner Theatre.

What this means is those still scrambling for last-minute, unique date ideas for Valentine’s Day weekend can stop hyperventilating. “Death at Rehab” (which is intended for audience members age 21 and older) will feature live music, catering by Benvenuti’s Ristorante of Norman, as well as a cash bar.

Written by Norman residents Jud Foster and James Briggs and choreographed by Sooner Theatre Executive Director Jennifer Baker, “Death at Rehab” throws attendees into the ever-popular world of celebrity culture and then allows them to play sleuth along with the show’s characters.

The comical story commences with the discovery of a murder at a celebrity rehabilitation center, and then all-out musical hilarity is to ensue as a slate of “fallen star” characters, as well as the staff of the rehab center, set out to discover the true killer. (For the added pleasure of those of us who enjoy the hilarious failings of celebrities, the characters will be recognizable as real-life stars, although their names have been altered.)

The show, which is performed in five acts, will feature “mixes” during the four intermissions, during which the characters will intermingle with audience members at their respective tables.

“The actors mix and mingle, and they stay in character throughout the whole evening,” Baker said of the show’s interactive nature. “They’ll go out and talk to people before the show, just to introduce themselves as the different characters at celebrity rehab. Then, during the mixes, the actors go out and audience members will have the opportunity to buy clues as to who committed the murder.”

If the intrigue of murder and comedy are not already enough of a hook, music fans are sure to be drawn in upon learning that “Death at Rehab” is set entirely to the music of The Beatles, which is to be performed by a live band.

Although “Death at Rehab” will take place at a venue outside of The Sooner Theatre, its proceeds will still go to benefit the theater’s future productions.

“The money raised tonight actually does help secure the deposits for our upcoming season and the productions that we would like to go ahead and book,” Baker said of the dinner theater. “It’s a crazy event — it’s funny and wacky, and a quirky skit, but through all of that they really are raising money for a great cause.”

Ticket information

What: “Death at Rehab: A Murderous Mystery Tour”

Where: The Hall at Old Town, 102 W. Eufaula in Norman

When: February 11-13 (doors open nightly at 6:30)

Tickets: $50 (available at The Sooner Theatre box office or by phone)