Waterdeep: dragon heist
its the summer of hell, the hottest summer on record for waterdeep and only a short time ago the previous open lord of waterdeep embezzled 500000 dragons (gold coins) from the city of waterdeep. Due to this services are floundering a bit and the city is a little off kilter. Blood is in the water and powerful forces are starting to circle both for lost money and power. For some reason there is an open war in the streets between several factions/gangs of waterdeep. You guys arrive in a bad place at the right time