Mak was drafted to serve in a war against the foreign invasion, forcing him to leave behind his pregnant wife Nak at the town of Phra Khanong.
Meanwhile, in Phra Khanong, Nak struggled alone painfully to give birth to the baby, but she dead.
After the war, Mak back to Phra Khanong. he is happy with Nak and their son, he didn't know that Nak is dead. but his friends knew. his friends told to Mak that Nak is dead. but he didn't believe.
Mak became angry with them for letting the rumor get the better of them, and told them to leave. Unwilling to leave their friend behind, the four conspired to "free" Mak from his wife.