Seo Young Min works as a taxi driver to support himself. Somehow, Seo Young-Min begins to take only ghosts as his passengers and he grants their wishes. Kang Ji Hyun happens to get in Seo Young Min’s taxi. She has no memory of who she was when she was alive. She doesn’t know why, but she isn’t able to leave his taxi. She, then, titles herself the sales manager of Seo Youn -Min’s taxi. Seo Young Min and Kang Ji Hyun together grant the wishes of ghosts, including chasing after a serial killer. They have a helper in Do Kyu Jin. Do Kyu Jin is a workaholic ER doctor with a handsome appearance. He senses signs of sinister events in the ER, where people are in life-or-death situations.