Sybil Browning is accused for murdering her own husband, James Browning. To prove her in innocence, she comes looking for Dylan Dog''s help, claiming that he was dead before she killed him, clues lead Dylan, Sybil and Dylan''s helper Groucho to mysterious Doctor Xabaras (who is in fact Dylan''s father), they follow him to village Undead where they find out that Xabaras made virus that can turn people to zombies...