Watch Blood of the Zombie

When a man is killed, his sister refuses to accept the loss. She then starts to research dark magic to find ways to restore her brother's life. When she discovers voodoo is known to raise the dead, she forms a cult to try and bring her brother back to life. The night of the ritual, tension is high as the spell is cast. When there is movement from the coffin, she becomes overjoyed. Much to her horror, the being in the coffin is out to kill them all. Now she must find a way to reverse her mistake.