When you read that Stephanie Roberts' one-woman Fringe Fest commedia dell'arte show, The Mask of the Broken Heart, was a film-noir spoof of Kansas City history, performed using 13 masks, you might have assumed it was a risk to be skipped. We're glad we took the chance. Roberts, who teaches acting at the University of Missouri–Kansas City and has plied her craft on tours all over the country, made her 13-character show work with seeming ease. Frequently switching masks that obscured the top half of her face, she was at once gumshoe, comedian and dramatist, skillfully leading the audience through a tangled plot. She kept the room spellbound. Anyone who missed her should feel a little heartbroken.