Talk about your mama's boy. Harmon, the pathetic subject of Terry Selucky's new play, has to lull his phobic, delusional mater to sleep each night by telling her stories about winged zebras and Burt Reynolds. His every move is tethered to her whims and fears. Even the saintly Rachel, who loves Harmon against all odds--and good sense--can't cope with mom's titanium apron strings. These folks are somehow endearing in their repulsiveness, and Selucky uses their slim hold on reality to create harshly funny fantasy vignettes. Riley Cooper's staging for the Sansculottes Theater Company delivers psychosis on a budget. And the cast of four is a ragged wonder. All that's missing is a structure strong enough to make these wonderful elements cohere. The plot as it stands turns on a surprise that's no surprise at all. Through 12/19: Thu-Sat 8 PM, Sun 7 PM. Live Bait Theater, 3914 N. Clark, 773-507-1898. $12-$15.