Takiawase are the vegetables served with meat, fish or tofu.
The two victims in this episode are named Duncan Halloran and Lloyd Roat. In The Shining (1980) there is a character with the last name of Hallorann (Dick Hallorann, the chef at the Overlook Hotel) and another with the first name of Lloyd (the bartender).
When Will is being questioned by Dr Chilton he states he (Will) is either Phycopath, delusional or right. This is a take on CS Lewis Trilemma - his commentary on Jesus. The Trilemma says in a nutshell - He is either mad, bad or God.
The dead perpetrator of all of the sewn together bodies is said to be named James Grey. The JG initials are the same as the real name of Buffalo Bill in The Silence of the Lambs (1991), Jame Gumb aka John Grant.
Unlike in other episodes of the series, the murder with bees has no connection at all with the rest of the show, no connection with Hannibal Lecter's character.