Attack of the Herbals

Attack of the Herbals is a 2010 Scottish horror comedy directed by David Keith from a screenplay written by David Ryan Keith, Liam Matheson and Alisdair Cook.

Set in a small Scottish village named Lobster Cove, the local community is enraged when a retailer is granted permission to build their supermarket complex on a nature spot. A crate is discovered washed up on shore and one of the group makes tea out of it.Some of the local residents band together to create a herbaltea cottage industry as a way to raise funds to fight the retailer. The tea proves incredibly popular and with its rejuvenating properties the elderly are finding a new lease of life. Unfortunately, there are sideeffects... ........

Source: Wikipedia