The Sunday family have discovered the secret of permanent happiness. Here it is perpetual Sunday, day in, day out, year after year. But when an apparently harmless Beast turns up out of the blue, everyone discovers that even paradise has its problems, as terrible family secrets come to light. Sunday is no longer the safest place to be.

This is the teaser for the animated musical feature film developed with the support of the BFI and the Royal Opera House. The teaser was produced by Studio AKA.