You can stream The Girl Before on HBO Max outside the United States, but you will need a VPN to unblock HBO Max outside USA. Follow these easy steps to watch it with a VPN:
Subscribe to a VPN Service (preferably ExpressVPN), download, and install its application on your desired device.
Use the VPN service to change to a server located in the USA.
If you don’t have an HBO Max account, register for an account. The base package starts at $9.99/month (with ads) and $14.99/month (ad-free).
Now log on to HBO Max. You’ll be able to watch The Girl Before on HBO Max from 10th February 2022 onwards.