A glamorous fashion designer who was found dead on a boat at a yacht club on Tuesday had recently celebrated the launch of her chic lifestyle brand at a prestigious Hamptons resort.

Martha Nolan-O’Slatarra, 33, the driving force behind the fashion label East x East, was discovered unresponsive aboard a boat docked at the Montauk Yacht Club just before midnight.

Good Samaritans attempted life saving measures, but East Hampton Town Police pronounced her dead at the scene. 

Her manner of death remains unclear and will be determined by the Suffolk County Medical Examiner’s Office. 

However, one individual at the scene characterized the boat, named Ripple, as a ‘party boat’ and informed Daily Mail of hearing screams when the woman’s body was discovered.

Nolan-O’Slatarra’s death comes just weeks after she boasted about the grand opening of her popup shop at Gurney’s Montauk Resort and Seawater Spa.

“Goals Achieved,” she captioned a video posted on TikTok on July 1, showcasing her bikinis and beachwear as she invited the public to visit.

The affluent neighborhood is now in shock, with many questions surrounding what led to the Manhattan resident’s demise, who was described in a New York Post article as ‘well-known in the community.’

‘She was very friendly, always smiling,’ the local said. ‘There’s going to be a lot of conversation out of this.’

Indeed, another regular at the Yacht Club claimed Nolan-O’Slatarra’s boyfriend owns the boat – which is registered in Long Beach, New York – and told Daily Mail that whenever she saw the boat owner he would be ‘drunk and always messed up.’

As Nolan-O’Slattara fell unconscious Monday night, she said, the boat owner was seen running outside naked screaming ‘that’s my girlfriend’ as he tried to get help from other boaters.

‘We come here (to Montauk) every summer and nothing like this ever happens,’ the boater said. ‘The police have been here all day since four in the morning.’

As the investigation continued into the early hours of Wednesday, police officers were seen stopping guests at the Montauk Yacht Club – as the area was being cordoned off.

But many in the upscale enclave continued their day as normal, lounging by the pool or dining at one of the Yacht Club’s restaurants.

They did not seem to have a care in the world, even as police officers and detectives in suits gathered on the dock.

Violent crimes are unusual in the upscale Long Island beach and resort area that is known for its monstrous mansions and high-end dining.  

Influencers and celebrities often flock to the area, especially in the summer months. 

The Montauk Yacht club offers those beach-goers luxurious accommodations, including spa services, a pool, beach, harbor cruises, biking and yoga.

Rooms at the famed club run for about $1,500 in the summertime and around $865 during other months. 

Celebrity makeup artist Patrick Ta even hosted an event there this past weekend that included a star studded guest list, including influencers Alix Earle and Remi Bader. 

Photos showed the glamourous influencers looking sun-kissed as they enjoyed cocktails and food at the yacht club. 

They were also seen overlooking the breathtaking marina which has now become a crime scene.  

There is no indication that the events hosted at the club this weekend are connected to the discovery on Tuesday morning.