As the summer heat rises, Horizon Theatre Company launches the Atlanta premiere of “Every Tongue Confess” a passion-filled mystery with original blues and gospel music. “Every Tongue Confess” began July 12 and will run until Aug. 25, at Horizon Theatre, 1083 Austin Ave., in Little Five Points/Inman Park. Performances will be at 8 p.m. Wednesday through Friday, 3 and 8:30 p.m. Saturday, and 5 p.m. Sunday.