Will Ferrell sports 1970s retro style on the set of dark comedy series The Shrink Next Door in LA

Will Ferrell sports 1970s retro style on the set of dark comedy series The Shrink Next Door in Downtown LA

Will Ferrell and Paul Rudd  are set to star in the upcoming dark comedy series The Shrink Next Door on Apple TV+.

And on Monday Ferrell was spotted on the set, getting ready to shoot a scene with co-star Kathryn Hahn in Downtown Los Angeles.

The upcoming series will reportedly consist of eight-episodes and follow the bizarre relationship between a psychiatrist to the stars, played by Rudd, and his longtime patient, played by Ferrell.

Action! Will Ferrell, 53, was spotted on the set of the upcoming dark comedy series The Shrink Next Door in Downtown Los Angeles on Monday

All the actors appeared to be wearing retro 1970s style outfits on set, with Ferrell sporting tan pants and a grey sweatshirt.

The funnyman also wore a blue jacket and had his brown hair in a puffy, permanent hairstyle, made popular back in the 70s.

He also had a full beard and mustache and donned large-rimmed glasses for the role.

The costume department had Hahn dressed in three shades of brown that included a long duster coat over a sweater for their scene together.

Rockin' it: The funnyman appeared to be dressed in retro 1970s attire, along with a permanent hairstyle made popular in the decade

Rockin’ it: The funnyman appeared to be dressed in retro 1970s attire, along with a permanent hairstyle made popular in the decade

Making magic: Ferrell appeared to be in a scene with co-star Kathryn Hahn

Making magic: Ferrell appeared to be in a scene with co-star Kathryn Hahn

Based on the Wondery podcast of the same name, Ferrell portrays patient Martin ‘Marty’ Markowitz, while Rudd stands in as psychiatrist Dr. Isaac ‘Ike’ Herschkopf.  

Over the course of their relationship, the all-too-charming Ike slowly takes over Marty’s life, even moving into Marty’s Hamptons home and taking over his family business, according to Deadline.

The series explores how a seemingly normal doctor-patient dynamic can morph into an exploitative relationship filled with manipulation, power grabs, and dysfunction.   

Casey Wilson will star as Bonnie, the wife of Dr. Herschkopf.

Teamed-up: The series reunites Ferrell and Rudd after starring together in Anchorman: The Legend of Ron Burgundy (2004) and the sequel Anchorman 2: The Legend Continues (2013)

Teamed-up: The series reunites Ferrell and Rudd after starring together in Anchorman: The Legend of Ron Burgundy (2004) and the sequel Anchorman 2: The Legend Continues (2013)

The series reunites Ferrell and Rudd after starring together in Anchorman: The Legend of Ron Burgundy (2004) and the sequel Anchorman 2: The Legend Continues (2013). 

Both actors will also executive produce along with Jessica Elbaum and Brittney Segal.

The Big Sick director Michael Showalter is helming the project, with Succession and Veep writer Georgia Pritchett on board as writer, showrunner and executive producer.  

The Shrink Next Door is a Civic Center Media production in association with MRC Television.   

So far there’s no official word on when the series will premiere on Apple TV+.

Double duty: Both Ferrell and Rudd are also serving as executive producers for the eight-episode series

Coming: The dark comedy will premiere in Apple TV+

The premise: Ferrell portrays patient Martin ‘Marty’ Markowitz, who has a bizarre relationship with Rudd’s character, psychiatrist to the stars Dr. Isaac ‘Ike’ Herschkop