当一项大胆的任务开展时，深海潜艇队进入海底的一个神秘入口，进入后他们发现了一个失落的水下世界，并唤醒了里面古老的异世界种族。

Ashionye, a reluctant Nigerian Shaman living in the south of England, who has been hired by an old family friend, Isioma Williams, to investigate and expel a malevolent spirit that has been tormenting her family after the death of her estranged husband, Magnus. To the chagrin of her demon hunting partner, Marv Taylor, Ashionye reluctantly accepts the job as a way to repay an old debt she owes Isioma. As Ashionye digs deeper into Isioma’s family situation, she finds herself standing against a familiar force that brought about her trauma since childhood.

Manic-depressive Jack must find a way to leave his manic highs behind him. Can the dullness of ordinary life ever compare to the magic of mania? And is sanity and stability really worth the sacrifice?