Set entirely within the submarine, the play invites viewers to peer through expansive cabin windows into the mysterious ocean depths, encountering colossal squid, shimmering jellyfish and menacing anglerfish. These wonderous sea creatures are the stars of the show, bursting onto the stage, floating elegantly through the water and sometimes launching attacks on the submarine.

Director Lesort has explained that there is a lot of magic happening behind the scenes with the puppetry. The actors not only perform on stage but also go backstage to manipulate the puppets. The puppets are brought to life by actors on stage who are clad in black outfits and gloves. They skilfully manipulate the puppets, creating bizarre half-human, half-puppet figures, all while maintaining meticulous control over their movements. "Costume changes and puppet changes are done in a few seconds in complete darkness. This involves a great team effort by the technicians and dressmakers."

To create the illusion of fish gliding through water, the production decided against using projections and instead utilised the enchanting effects of black-light theatre. This creates a magical dance of light and shadow in which the puppeteers remain hidden, ensuring that the fantasy isn't disrupted by any human forms. And it's all made possible by precise lighting of the highest artistic order.