Dreams and reality blur together in Robbie Atkinson’s horror short film Kalimba. Cassidy (Raiani Silva) is a teenager who has had trouble sleeping ever since her father brought home a mysterious kalimba given to her by a friend of hers. Cassidy is in a state of sleep paralysis every night. she can’t move, she’s fully awake, but a demon is hovering over her, watching her. I can see.