The fellow members of MBLAQ saw the poster for Lee Joon's upcoming tvN drama "Gapdong" and thought he looked like a mental patient on it.

"They really liked it," he said.

His character in "Gapdong" is Ryu Tae Ho, a smart young barista who idolizes a serial killer. THe is one of five characters who have different reactions to the return of a killer, who disappeared 20 years ago. People assumed that the killer died and suddenly he is back committing new crimes. Or is he? Could the new crimes be the work of a copycat killer.?

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