Katie hasn't been the same since she lost her brother, living in silence and melancholy. After being questioned about his death, she is given a mysterious package containing a token her brother left behind, a beautiful seashell... but something, a presence, follows it into her home. With her solemn peace stolen in recompense, can she help break the ocean-dark cycle her dearly departed brother unknowingly began?
| Actor | Role |
|---|---|
| SSeniha ErcanKatie | Katie |
| AAlfie KenoBen | Ben |
| CCallum LloydOscar | Oscar |
 Emma BarbaraThe Editor | The Editor |
| EEvelyn SimmsYoung Katie | Young Katie |
| MMaria MilushevaChildhood friend | Childhood friend |
| JJade SpearYoung Ben | Young Ben |
| NNigel LaneJude Voiceover | Jude Voiceover |