"Bad Gastein" refers to a historic spa town in Austria, known for its grand, Belle Époque architecture and natural hot springs but also marked by a sense of faded grandeur. The town’s blend of past elegance and present moments of neglect or loss mirrors themes Mueller explores in Bad Gastein Afterhour.

The painting depicts a drained pool, an image of abandonment and depletion, with a knight standing inside holding the leash of a distressed she-wolf. The knight, clad in medieval armor, evokes historical authority and myth, while the she-wolf—reminiscent of Rome's Lupa Capitolina—suggests foundational myths of civilization but now appears strained, as if struggling under the weight of its own symbolism. The pool’s walls are covered in graffiti, blending high and low culture and emphasizing the collapse of historical grandeur into modern disorder. In the sky, stars glitter alongside a large cloud from which a pig’s face emerges, a surreal, almost mocking presence that disrupts the scene’s gravity. A small putto, a Renaissance motif, also appears among the clouds, hinting at both divine presence and playful irreverence. Together, these elements create a landscape where cultural fragments collide—Mueller exploring themes of ruin, mythology, and the instability of historical memory.