Photo credit: Diana Hunt

If bottomless whiskey smashes, dancing flapper girls and an insane amount of oysters set to the tune of blasting music sounds like a scene straight out of The Great Gatsby, you wouldn’t be far off. But change the setting to Kenmore Square and fast-forward 90 years, and it’s your Sunday afternoon.

Aptly named The Big Party, Opus Affair is throwing its second annual bash this weekend promising food, fun and a whole lot of booze.

Opus Affair is a non-profit group of young professionals that focuses on supporting the arts through a series of parties. More specifically, the organization hosts monthly meet-ups based on the concept of a “Punch Bowl Fund.” Each month, Opus Affair organizers choose three new non-profits for which attendees donate $5 for a glass of punch and a ballot to vote for one of the three.

After hosting dozens of Punch Bowl Fund events, Opus Affair’s founder, Graham Wright, was alarmed by a trend: in January 2012, several negative storylines were hitting the news about the downfall of Boston’s arts scene. Given his dedication to the cause, Wright wanted to commit to something that was “a positive celebration” of the arts in Boston

Opus Affair decided to amp it up last summer, creating The Big Party, a 1920s-themed extravaganza at Eastern Standard, bringing together not only the arts community, but foodies, cocktail enthusiasts and just anyone in Boston who enjoys a good time.

The Big Party is back in its second rendition this Sunday, July 28th, and promises to be more awesome than ever. “It’s the biggest thing we do,” says Wright, who’s hosting nearly 100 events since Opus Affair began. “This is one event where people come back to.”

Tickets are $125, but before you balk at the price, let’s break down what you’re getting included in that ticket:

Food – Once again, the party is at Eastern Standard, so they’ll be serving up passed apps all day long. Or, you can say “shuck it” to those dishes and just slurp Island Creek Oysters instead.

Booze – Folks, this is one of those rare open bar situations that’s actually worth it. Forget every memory you have of your 19-year-old self trying to chug as much well vodka in a Faneuil Hall bar on New Year’s Eve 2002. We’re adults now, and we must drink adult drinks. Bombay Sapphire Gin, Bacardi Rum, Drambuie, Milagro Tequila, Reyka Vodka, Basil Hayden Bourbon, and St-Germain will all be pouring cocktails. Wright also notes there will be tequila and vodka sno-cones on the patio for added boozing. If you prefer beer, Backlash Beer Company and Notch Brewing will be on hand.

As Wright aptly sums it up: “Four hours of open bar at Eastern Standard is something that doesn’t happen often.”

Entertainment – Red Sox DJ TJ Connelly will be providing the tunes, and multiple dance troupes, including a burlesque group and flappers, will be on the floor making sure attendees get hyped up to party like its 1922.

Free Stuff: Door prizes will be curated by ArtsBoston, promising awesome local performing arts opportunities. Additionally, each attendee will leave with a gift bag, with prizes from the Hawthorne, Island Creek Oyster Bar, Eastern Standard, Paint Nite, the Gardner Museum, Boston Ballet, and more. Legit.

Still not convinced? Well, then you obviously don’t like having fun. The Big Party takes place at Eastern Standard from 1 p.m. to 5 p.m. on Sunday, July 28th. To register, click here.