Gunpoint is a 2D stealth strategy game released by Tom Francis released in 2013. In it, you play a private detective specializing in infiltration of secure buildings (mostly breaking into secure office buildings, stealing/planting data and then escaping it). As the game starts, you get a call to visit the office of a friend but when you get there you find that she’s been murdered in the short time since the phone call. You don’t see any clear evidence but the building security camera recorded you entering her office.
A friend of your dead friend contacts you, warning you that you’ll be the primary suspect for the lazy local police force. She wants the real killer to be found so she contracts your services to break into the five offices that store the automatic offsite backups of that security feed.