Immersion - Rue des Martyrs showcases beans from Belleville Brûlerie, brewed on a La Marzocco machine. Opened in February 2025, this café offers a variety of espresso-based drinks, alongside both sweet and savory food options. With seating available and takeaway drinks, it serves the eclectic coffee culture of Montmartre and its surroundings. The café is open seven days a week, ensuring a consistent presence in the vibrant 18th arrondissement.