No body part is safe when host John Henson welcomes 12 Halloween hopefuls to check into Hotel Henson and asks them to do a little detective baking by creating faces out of pie. Then, it's "blood in blood out" as they try to impress judges Stephanie Boswell, Zac Young and Carla Hall with blood spatter cakes.

Host John Henson's best friend, Puss in Boots, checks into Hotel Henson for three cat-tastic challenges. First, the bakers will honor Puss by turning a croquembouche into "croquem-boots" before redesigning an old school dessert to represent a method of death. Finally, two bakers on dessert death row must create cat-sized cakes that display Carla Hall, Zac Young and Stephanie Boswell's last wish desserts. Cats have nine lives, but one baker is about to get the boot.

John Henson asks the bakers to update the hotel's signature hedge maze by teaming up for a supersized challenge of hauntingly delicious maze cakes. If judges Carla Hall, Zac Young and Stephanie Boswell can eat their way to the center, they'll be treated to a baked prize. A supersized challenge becomes a double elimination as two bakers are sent to the 13th floor.

The bakers face decay when host John Henson challenges them to make moldy desserts that incorporate fermented ingredients. Then, judges Carla Hall, Zac Young and Stephanie Boswell smash desserts and dreams as they send one baker packing up to the 13th floor.

John Henson turns up the heat when he asks the seven remaining bakers to set their desserts on fire by reinventing ​flambé classics. Then, the bakers have judges Stephanie Bowell, Zac Young and Carla Hall in stitches with realistic open wound cakes, and one baker is gutted when they're eliminated from the competition.

John Henson turns the bakers' worlds upside down when he challenges them to make upside-down cakes without pineapple. Then, judges Carla Hall, Zac Young and Stephanie Boswell are seeing double when the six remaining bakers team up to create twin cakes that look identical but taste completely different. One set of twins is separated as the least successful baker is sent to the 13th floor.

Bottom's up as John Henson asks the remaining five bakers to create lighting in a bottle by baking desserts based on classic cocktails. Then, the bakers must face their fears by frightening judges Stephanie Boswell, Zac Young and Carla Hall with sets of entremets that represent their worst nightmares.

For their final night, John Henson asks the bakers to create sweet and savory grazing boards in honor of a dearly departed couple; Carla Hall, Stephanie Boswell and Zac Young judge black wedding cakes to determine the Halloween Baking Champion.