Resourceful young Hugo Llor works to make a name for himself in 14th-century Barcelona while keeping a vow he made to the Estanyol family.

A couple decides to spend a romantic evening in a floor of a semi-abandoned building that slip because she works as a consultant for the council house and got the keys. During the evening they discover that a hooded murderer is the only tenant left in the building...and they have become the new target.