Vintner's Contract: Rivecalme Storehouse
Side quest
Toussaint suggested level 37 Blood and Wine
From the journal
As he was roaming wine country, Geralt was not at all surprised to come upon a vintner. Nor was he surprised to learn the vintner needed a witcher's help…
The vintner had acquired a property that had come with some very nasty tenants - a pack of ghouls. The witcher quickly exterminated the filthy, stinking beasts.
The vintner was contented and generous towards the witcher when paying for his hard work. The witcher was likewise contented and proceeded on his way.