Koko-di Koko-da

Koko-di Koko-da is a 2019 Swedish-Danish surrealist dark fantasy psychological horror film directed, produced and written by Johannes Nyholm. The film tells the story of a struggling couple on a camping trip in the woods to save their marriage, after the tragic death of their daughter on her eighth birthday during a vacation in Denmark three years prior, who find themselves in a time loop of agonizing torture, humiliating slapstick, and surreal dreams at the hands of a band of antagonistic nursery rhyme characters depicted on a music box, which they had purchased for their daughter as a birthday gift prior to her death and birthday. The two have to find a way to heal their broken marriage, overcome their grief, and escape the macabre time loop of torture and murder.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.