This section described the final part of Get Even. The sequence will start automatically, once you complete Red's last memory (memories 7th and 8th from Howard meeting). You will reveal new, shocking leads and you will gain control over Grace. Furthermore, you will have to choose one of the two available endings.
Walk inside to trigger a longer "farewell scene"
Still playing as Red, get out of bed and walk through the door. This will launch a longer scene which is also a summary of some of the events and decisions from the past. The scene will finally end and you will gain control over Grace and obtain another trophy - Transcendence.
Grace will be sitting in front of the desk and you will have to select one of the main endings. The first option suggests to continue the simulation and reveal the entire truth about her father. If you want to select the first ending, interact twice with Pandora.
Once in the limbo, follow a very linear path, and reveal additional facts about the conversation between Howard and Ramsey. Teleport yourself to the warp that presents Ramsey. You will find out that he shot Howard and committed suicide.
The other option allows you to terminate the connection and keeping the truth unrevealed. If you want to select the second ending, interact twice with the laptop on the right. No further scenes will be triggered.
Aside from the choice of an ending, the end of the game rewards your playstyle with an achievement. If you haven't listened to Red's warnings and eliminated encountered opponents in open combat, you'll be rewarded with Disowned. On the other hand, sneaking past opponents (aside from scripted encounters) is rewarded with Non Omnis Moriar.
Remember! This doesn't mean the end of Get Even. After the ending credits you can go back to Black and Red's memories (select the continue option from the main menu). This way you can search for hidden content, make different decisions or find missing clues.