I'll Be Watching You

This is a test idea for a possible future novel, so I would greatly appreciate constructive opinions in the comments. Thank you for checking it out!

Ella Harper is ready for the adventure of a lifetime: four years in London, chasing her dreams with a new kind of independence. She's said her tearful goodbyes, packed her life into suitcases, and told herself she's prepared for anything.

But is she really?

From the moment she steps off the plane, London feels as enchanting as it is overwhelming. But as Ella settles into her new life, the lines between friendly and dangerous blur.
In this haunting, gritty tale of obsession and survival, Ella will fight to reclaim her freedom before the city she longed to explore becomes her prison. Because in London, secrets hide in every shadow-and some eyes never look away.