All That is Bitter is Sweet(2014)

All That is Bitter is Sweet is a Chinese historical drama following the Dou family of Foshan, wealthy proprietors of Sheung Chun Tong, the town's largest traditional apothecary. When an epidemic sweeps through Foshan, the shop's medicine becomes the suspected culprit, and the owner faces murder charges and imprisonment. Determined to save her father, the family's only daughter Dou Gaai-kei launches her own investigation into the crisis. The series blends mystery and period detail as she navigates a dangerous web of accusation and deception to uncover the truth behind the outbreak and clear her family's name.