Echo of a Curse

There is a curse. A curse which turns men into werewolves.Vin's father was an occultist and wanted to be immortal but he ended up cursing his bloodline. When Vin marries and has a son, the latter too carries the family curse. Unbeknown to his poor wife, Vin switches his son at birth with a normal human. But blood follows blood, in one way or the other. What will happen to the curse and the cursed now? Will the son be able to forgive his own father for this treachery?