Murder in a cup

Shay Myers, the descendant of an Irish witch and the owner of Crystals & CuriosiTeas in California, practices the art of blending herbs at her shop. She meets the grandmother of pub owner and ex-detective Liam Madigan, and the woman encourages Shay to have a tea reading. Everything is going fine until a customer dies from sipping a poisoned substance. When Shay's assistant is accused of intentionally serving the tea, Shay and Liam must clear her name and save the shop.