Best agent Mr. Chan (Dayo Wong) unexpectedly finds himself removed from duties after his partner wonderchild inadvertently offends a policewoman, Ms. Shek. But every time a financial officer belongs mad due to medication, Mr. Chan is called in to fix the case, which he accepts even though this usually means teaming up with Ms. Shek. The two have while working together, finally resulting in romance, a few ups and downs.