A traditional ink-making workshop is on the verge of bankruptcy, and ink maker Mo Yu must raise 300,000 in overdue payments before the end of the month. Just when he is at his wit's end, Lin Xia, a corporate executive on the brink of a breakdown, unexpectedly walks in and finds complete emotional release and healing by furiously pounding ink mud. The two hit it off immediately and decide to transform the ancient craft of ink making into an in-person emotional stress-relief studio. With creditor Shen Qi closing in and a final deadline of just twenty days, can this seemingly absurd cross-industry partnership turn the tide and achieve a comeback? The answer lies hidden in the heavy mallet and the black mud.