This is Tom Mison as Quentin Thorpe-Blood's outfit from the Hulu series Four Weddings and Funeral.
Included in this set:
Blue-Green Blazer
Checked Long Sleeve Button up
Blue Long Sleeve Sweater
Tan Dress Pants
Green Checked Scarf
Mohagany Dress Shoes
This outfit was worn in Episode 103 as noted by the COA.