The Monarch Studio is arguably one of the most intriguing locations in Dead Island 2. It not just hosts some of the best side quests but also references some of the pop culture's behemoths like Star Wars and Friends TV show.
It's also home to several locked doors, safes, and for some reason, a suitcase. You can find the locked suitcase in Kelli Jo's vanity between stages 5 and 6. Naturally, Kelli Jo is nowhere around, which means you'll need to track her down to get the key for the suitcase.
With that in mind, here's our guide, which pinpoints the location of Kelli Jo's suitcase key.
Where to find Kelli Jo's suitcase key in Dead Island 2
You can find Kelli Jo's suitcase key on Kelli Jo Longteig, who's now a screamer. You can find them in the area outside stage 3.
However, Kelli Jo screamer won't appear here until you have encountered the introductory screamer in the main quest, "Flushed," in the tunnel while on your way to Venice Beach.
Once you have reached the Blue Crab grill safe house in Venice Beach and unlocked fast-travel, come back to Monarch Studios to find Kelli Jo and get their suitcase key.
You can find the exact spawn location of Kelli Jo Longteig near stage 3 in the screenshot below.
It's best to fight a screamer from a distance, so make sure you're carrying a long-ranged gun. Once you have taken care of Kelli Jo, grab the suitcase key from their corpse and head back to the vanity van.
The exact location of Kelli Jo's suitcase is marked in the screenshot below.
Use the key to unlock Kelli's Jo suitcase and get Superior-tier Agile Offer's Sword, among other things.