Devil of Choice, Maggie Diaz Bofill’s new play presented by the LAByrinth Theater Company, begins with a violinist silhouetted amidst a scorching red light. A long, wailing note that is both sinister and filled with longing pierces the silence, and the audience is momentarily cast into the fiery pit of hell. Fittingly, as one of the characters makes clear later, the violin is the favorite musical instrument of the devil. This striking image sets the scene, however, for the disappointing drama that follows, a Faustian riff on an all-too familiar love triangle.