Mary accidentally discovers a mermaid drawn on the wall of her small apartment in Warsaw. It turns out it was drawn by Pablo Picasso during his visit in 1948! She's thrilled, but she doesn't realize the mermaid will turn her life upside down.
| Actor | Role |
|---|---|
 Magdalena KoleśnikMary | Mary |
 Andrzej SewerynRadomski | Radomski |
 Dominika KluźniakNot listed | Not listed |
 Maciej MusiałNot listed | Not listed |
 Olgierd ŁukaszewiczNot listed | Not listed |
 Małgorzata ZajączkowskaNot listed | Not listed |
 Piotr GłowackiNot listed | Not listed |
| OOscar MartinPablo Picasso | Pablo Picasso |