Strigoi, also known as vampires, are beings from Romanian mythology. It is believed that they have superhuman speed and strength, shapeshift ability, immortality, astral projection, and invisibility. Strigoi can manifest as a poltergeist, a troublesome ghost. Strigoi are considered lethargic and drowsy during day and active during the night. They attack their victims during the night leaving teeth marks on the corpses.