Blinded by a mysterious seizure when she was three years old, Bash Martin has managed to carve out a normal life for herself as an adult. Yet she still yearns for a deeper connection with her twin sister Lily, who has always been jealous of the attention their parents bestowed upon Bash due to her disability. A dream vacation seems like the perfect chance to heal their relationship, but Bash soon realizes there is something terribly wrong with Lily and that her sister is hiding a dark secret. And when a supernatural fire engulfs their hotel and corpses come back to life, the sisters are plunged into a nightmarish world that threatens not only their lives, but their very souls.