Slip into the season like you would slip into a bathtub filled to the brim with the finest single-barrel bourbon, provided you had the wealth and substantial real-estate holdings of Bob’s landlord, Mr. Fischoeder. Calvin Fischoeder, voiced by Kevin Kline, and his malevolent, surprisingly agile brother Felix will help you relax with their festive jazzy tune, the video of which Vulture has the honor of premiering above. But don’t relax so much that you ever feel comfortable going under a pier with them again. Or going anywhere with them again. These are not good guys. But oh, listen to that piano! How fun.