The reason for making this film is clear: it was to cover up Vojtěch Jasný's famous chronicle "All the Good Natives", an account of the tragic consequences of forced collectivisation. The pro-regime director Antonín Kachlík also focuses on the socialisation of the Moravian village, accompanied by mistakes and coercion, but in his optimistic view he emphasises the hopeful prospects leading to a happy future. Although the united village lands were born in pain, they will serve for the benefit of all the working people... As with Jasný, Radek Brzobohatý embodies the stubborn peasant, who is only slowly acknowledging the benefits of communal farming. However, unlike the poetic exuberance and pithiness of Jasný's chronicle, here we encounter a vicious posturing.

On her fifteenth birthday, when mermaids are allowed to sail above the sea for the first time, the little mermaid saves the life of a handsome prince. She falls in love with him so much that she is willing to sacrifice anything for his love - even her immortality or her voice. She is not afraid of pain and, with the help of a sea witch, transforms into a human being. She then meets her prince on the seashore...