On the day the male protagonist was released from prison, he thought his wife and son were coming to pick him up. Unexpectedly, he was hit and killed by the second male lead's car. Before he died, he learned a shocking secret - he was imprisoned because of the betrayal of his wife and the second male lead. He poisoned the medicine he brought to the second male lead's father! Moreover, his beloved son was born from his wife's affair with the second male lead. The male protagonist died with unwillingness and resentment. Unexpectedly, when he opened his eyes, he returned to the day before he delivered medicine to the second male lead's father three years ago. The male protagonist vowed to expose their conspiracy and let everyone see their ugly faces...
