Amantius Allectus is an imperial commoner living with his wife Caula Allectus in the Imperial City. He is the author of a diary that details his macabre experiments on plants which is stolen by the Thieves Guild.
He conducts his experiments in his basement and a table with several potted plants, mortar & pestle, and blood stains can be found there. Amantius is absorbed in his work with his wife having to keep him in order:
“My poor husband is getting no sleep. He's awake all night taking care of those stupid plants."
“My job is making sure my husband Amantius doesn't go out with his clothes on backwards. It's cute, really. Such a genius, and can't find his own socks. It's a full-time job keeping him in matching outfits."
"I find things to do. I manage the house, make sure Amantius doesn't starve or run out of ink."
Amantius Allectus experiments are an easter egg to the Little Shop of Horrors.