Holiday ads come in all shapes and sizes, but very rarely do they make you feel as tense as this one, from German online retailer Otto.

This year, Otto (which has impressed us before with its holiday fare via Heimat Berlin), has engaged RSA director Daniel Mulloy, a BAFTA and Cannes winner this year for the United Nations film "Home," for a film set in the Bolivian altiplano at holiday time. A bus sets off on a vertiginous mountain road but its journey is halted by a landslide, and it sits precariously near the cliff edge. The driver explains what's happened, and reassures a young girl who's scared, but an American tourist who speaks no Spanish gets worried, and aggressive.

It's an incredibly uneasy situation, until the girl breaks out nervously into a rendition of "Feliz Navidad." The passengers come together to celebrate Christmas (although the American still doesn't look totally happy, we reckon) and the spot with the message that Christmas is about coming together.

While we're not too sure what it has to do with the brand, it's a very different and memorable film that's about as far from schmaltzy seasonal advertising as you could get.