Lucy, the Sky and the bloody Diamonds

"A thief nevertheless. And a catfish. You told me it was the most epic party you had attended."
"Isn't it though? Imagine stealing little beauties from the beast's own mansion."
"That is the most disgusting analogy I have heard."

It's 2024.
The world has collapsed.
But the people have found a new way to deal with it.
Sky, a paper chip stored with a person's favourite memory. An intake allows them to relive their happier times even if just for a day. It doesn't change anything in the real world but alters the memory of the person until their next intake.
But when one fateful Saturday night Lucy finds herself a weekend trip, she realises he is a thief.
His favourite memory? Stealing diamonds from a mafia kingpin's own mansion.
But what ends as a bad trip for Lucy turns into a real nightmare as the kingpin returns to get back what was his.