The “Crypto King of Kentucky” suspected of torturing a man for weeks inside a lavish multimillion-dollar townhouse hosted extravagant parties there … and it seems he didn’t raise any red flags when landing the swanky SoHo rental, TMZ has learned.

Here’s the deal … John Woeltz and William Duplessie are currently in custody for allegedly torturing Michael Valentino Teofrasto Carturan to get access to his crypto fortune … until the Italian citizen finally made his escape and told police everything.

Multiple sources with knowledge tell TMZ … Woeltz started living in the Manhattan townhouse on March 17 … with a rent amount of $75K – $90K a month.

Once they staked the impressive joint as their new crypto bro pad … John and William would allegedly party for days on end … and the Don Julio tequila was always flowing and the food was next-level swank — which included constantly ordering from Blue Ribbon Sushi, Nobu, and Cipriani’s.

They always had security at the townhome … and they never had butlers, which is contrary to other reports.

The point of all of this brash peacocking, we’re told, is John and William were going balls-out to socially climb in the NYC scene — and they had people around them working overtime to get them into the best venues and parties.

The duo — when not allegedly torturing Carturan in the basement — were always pushing to be in the ritzy NYC mix … and they recently attended a Met Gala after-party. In April, they attended the Save Venice Gala at the Plaza Hotel.

The pair also frequented The Box nightclub regularly … and would often bring girls home to join in their hardcore partying.

But don’t get it twisted … we’re told both guys were totally obnoxious, not at all the life of the party, and it actually sucked to be around them … but people kept showing up for the free alcohol, drugs and the lifestyle.