不是冤家不聚头 The Wrong Couples

不白之冤 Unredressed injustice ; unrighted wrong ; a hidden grievance that cannot be disclosed

冤家不聚头 Not enemies would meet somehow ; The Wrong Couples

不花冤枉钱 Never Overpay

冤魂不息 The Fog

遭受不白之冤 suffer an unrighted wrong