Things are getting a little steamy on stage in the ol’ barn at Western Reserve Playhouse in Bath, as the giddily sexy satire “The Underpants” continues.
The play by renaissance man Steve Martin, adapted from a German farce by Carl Sternheim, is set in 1910 Dusseldorf. But this is no staid old story: It’s a romp that plays as a sex comedy, where just about all of the characters are motivated by copulation.