Wiedersehen mit dem amnesischen Gangster-Ex.

Pianist Felix infiltrates an underground fighting arena seeking revenge, where he unexpectedly reunites with Roman, his lover from whom he was forced to separate three years prior. Roman is now a powerful figure in the underworld, having lost part of his past memory due to sequelae from a car accident. Amidst suspicion and tentative interactions, the two become entangled once more and join forces to confront Victor, the mastermind pulling the strings. After enduring kidnappings, bloody battles, and trials of life and death, they uncover the truth behind their past breakup, cast aside their estrangement, personally eliminate their enemies, reclaim everything that was stolen from them, and ultimately remain together.