A curious and horny stranger, 'Eu,' finds himself in the bustling city of Porto Alegre, hunger for connection and pleasure driving him to explore the vibrant gay scene. Hitching a ride on a local 'Trenzinho,' he discovers the hidden delights of the city's gay cruising spots, his eyes meeting with eager glances and inviting smiles. The rhythm of the train becomes a beat to the dance of desire, as 'Eu' navigates the thrilling world of anonymous encounters, each stop promising new possibilities.