Sara Chae is the founder of the app One Last Word, which allows you to send a message to whomever you want after you pass. Safeguards are in place so the app will only send out when you're definitely, absolutely, 100% dead, but when another Sara Chae dies and the obituary triggers the prototype to auto-send messages that Sara uploads on one drunken night--to her emotionally charged mother, to a former best friend who ghosted her, and to her unrequited high school crush Harry--she has to deal with all the havoc that ensues and reopen old wounds from the past. She applies for a venture capital mentorship and is accepted to the program, only to find out that the mentor she's assigned is none other than her former crush and VC superstar Harry Shim, and her life goes from uncertain to chaotic overnight.