Fynn Arndt moves with his family to Grindelwald from Zurich, seeking peace in the quiet village.

His parents encourage him to befriend Runa Kruse, their friends' unsocial daughter. Both cool-headed and blunt, Fynn and Runa’s natural interactions spark a growing bond as they explore the snowy beauty of the Alps.

Amid shared moments and unexpected connections, their relationship evolves from friendship to something deeper. ‘White Grin’ is a heartwarming story of discovery, curiosity, and the quiet complexity of love in a picturesque Swiss village.