Vrukolak

The Vrukolak is a vampiric creature from Northern Dalmatia, related to the Vrykolakas. They are created when a cat or dog jumps over a corpse, or when someone is murdered without any witnesses. They first target former friends and family from life, and victims of a Vrukolak also become a Vrukolak. They can transfix people with eye contact or an unnatural screech. It’s impossible to kill them, but they can be crippled to keep them from rising again. To do so you have to cut the tendons in their legs and then nail the coffin down and drive the final nail into their hearts.

Citations:

Bane, Theresa. Encyclopedia of Vampire Mythology. United States, McFarland, Incorporated, Publishers, 2017.