Darklight (2004)

Inspired by an ancient myth, Darklight stars Shiri Appleby as the immortal Lilith, long hunted by a secret society known as the Faith. Her true nature concealed by a powerful spell, Lilith lives as a 24-year-old woman with no memory of her ageless past. Now, the Faith's chief agent, William Shaw, must recruit Lilith and train her to use her mystical power, known as Darklight, for the good of humanity. So begins Lilith's heroic journey; to slay a deadly demon and come to terms with her own dark past.