Love Case Across Worlds.

Puncha is an investigator and met Dunchaya who happens to be the suspect in poisoning a victim by being the one who made the food. Because of fear, she ran away and Puncha chased her. They were in a boat and strange things happen leading them to two crossed back to 1913. Puncha had to temporarily stop investigations into the case of Dunchaya, and they were looking for a way back together, but the two were accidentally involved in a murder case. Looking for a way to get back from the present time, the two investigated the case but the matter was not as simple as the leads thought, many killed in a row and they have to find who is doing it.