Complex sentence: Hecky takes a liking to Howard and invites him to the Catskills, where he is booked to perform on stage, but the club owner short-changes the entertainer on his promised salary, furthering Hecky's distress.
Split into simpler sentences: Hecky takes a liking to Howard and invites him to the Catskills, where he is booked to perform on stage. The club owner short-changes the entertainer on his promised salary, furthering Hecky's distress.