The Empty Man

Frost confronts the problems of patient Jeonghyuk Oh, who is struggling to date women that do not leave him. Frost deduces that he has issues stemming from unresolved issues with his mother.

Characters
In order of appearance:
 * Professor Frost
 * Jeonghyuk Oh
 * Jeonghyuk's girlfriend
 * Sangwon Chun

Episode 1
In a bar named Mirror, a white-haired man continuously polishes wine glasses as he recalls the last thesis of a well known psychologist wherein it is stated that all humans were the same.

Soon, a couple walks in and order a few drinks. The manager greets them and the man asks how things are, he then introduces his girlfriend of two months.

As they continue their date, the man surprises his girlfriend by giving her a ring as a present. When she says she wants to give him something in return, the man tells her not to mind it and instead states that she will make him happy forever, to which the girl says she is very happy to hear.

Later on, as the man is ordering another drink, the woman comments about how interesting the patterned wallpaper behind the bar is and says that it looks like a mask. Hearing this, the white-haired bartender glances at the woman and observes that her lower body is pointed towards the exit.

When the woman gets up to make a call, the manager comments on how beautiful she is and the man admits that he may have found his match. However, as he is playing with a Rubik's Cube, the white-haired bartender says that, unfortunately, the woman thinks differently and he states that she is lying. Confused, the man tries to ask what he means and the bartender continues by saying that she may not return. The man starts to panic and he asks him what he means again. As he is muttering about how there is no evidence, he gets a text message from his girlfriend saying that she had to leave and that she would make it up to him. Shocked, the man asks the bartender how he knew, and he just replies by saying that the woman told him all along.

The bartender then starts talking about people's 'open poses' and 'closed poses' and explains that when people do not want to listen to what others want to say, the often keep their arms and legs crossed and subconsciously adopting a self-defense pose, which is commonly defined as 'I don't care what you have to say'. He then goes to her handbag. He states that since the woman put her handbag away from the man despite dating for two months, it means that the two of them are not too close.

The man continues to panic and asks the bartender what he can say with just those facts. The bartender admits that you cannot determine a person's mind with just that and it is possible that they had a fight before they came or that they still need to become closer. The man becomes a little relieved saying that they did need a little more time. However, before he could calm down, the bartender states that from the moment he gave the woman a present, he could see some very interesting things.

Episode 2
Confused by his earlier statement, the man asks the bartender what he means. The bartender says that, truthfully, one cannot determine what a person is thinking with just those things, it is merely a speculation. However, in order to make it into a prediction and not just a speculation, something else is needed: the sign of a lie. Outside the bar, a man arrives at the entrance and wonders if this is the place he is looking for. Meanwhile, the bartender tells them that the most common and easiest sign to spot when someone lies are the lips and the ears.

He states that, except for experienced swindlers, most people feel guilty when they lie and subconsciously feel the need to 'hide their mouths' which results to 'bringing your hand to your mouth'. He points out that when the woman said she wanted to pay him back, in truth she had no desire to. The same goes for when someone does not want to hear something out of their unconscious desire to 'block their ears', their hands go to their ears. He admits that the 'widening of the pupil' when she saw the gift was real, but she had no desire to hear what he was saying about making him happy. He then says that the key in telling whether it is genuine or not are the eyes; that the smile is only genuine if the eyes are also genuine.

He reveals that when the man said 'I'll make you happy forever', she showed a fake smile to something she didn't want to hear. He finishes his deduction by saying that, without opening her mind and without wanting a serious and long-term relationship, this means they are getting ready to break up.

The man snaps and starts shouting, angrily asking who would ever believe that kind of psycho mind reading. With his outburst, one of the other bartenders ask the manager if they should stop it, but he is told to simply wait. The white-haired bartender suddenly states that the pattern on the wall is actually a psychology test used around the world. It is used to test what people perceive and although they vary for every person, each answer reveals something about a person's subconsciousness. If a person says 'mask', it means they are wearing a mask at the moment and are hiding the truth. He then says that when a person wants to be some place other than here, then the lower body faces where they wish to be. He states that in the case of that miss, it was the exit.

When the bar free of customers, the manager comments about his customer service skills. The man just says that it was he who hired him even though he did not know how to make cocktails. Hearing this, the other bartender becomes confused and the manager tells him that the white-haired man is not really a bartender. In fact, his real name is unknown to him and they just call him Professor Frost.

The door to the bar opens, and as they are telling him that it's closed, Frost recognizes him. The man smiles at Frost and says it's been a long time.