A fish is my neighbour?

The stunning 35 year old Siam cat-lady, Natalie Ernest-Edlaar, is living an unseen double life: A successful manager in a ruthless work environment by day, but an overworked slob at night. Trapped in her self-made, mentally exhausting cycle to reach monetary freedom, one night, a mysterious Koi fish with foreign memories that never happened appears in her bathtub.

Looking for answers while more abnormal phenomena emerge, both begin a wondrous journey to find the missing home of this lively visitor that keeps messing with her daily routine. A quest not going unnoticed by an ancient cult, chasing after a certain woman of times long past...