According to the TIFF schedule, High Life will screen as follows:

• 9 September 2018 at 9.30pm  Roy Thomson Hall
• 11 September 2018 – 11.00am Winter Garden Theatre
• 14 September 2018 – 9.45 pm at TIFF Lightbox

NOTE:  There are two Press Screenings – 10.30am on 11 September 2018 and 12.00pm on 13 September 2018 at Winter Garden Theatre

TIFF also provide us with this detailed synopsis:

The destination is the black hole within closest reach of Earth. Most of the spaceship’s crew is kept in suspended animation, maybe because they’re a collection of dangerous prisoners, last-chancers with nothing left to lose. At first Monte (Robert Pattinson) is the only crew member awake, rigorously tending to the ship to keep them all alive as they hurtle through space. But Monte is also caring for a baby daughter, born on board. This anomaly is only the first sign of the chaos to come. As Monte’s self-discipline slips, the crew awakens and conflicts erupt. 

I love that TIFF has said the following with regard to Rob:

In the years since the Twilight series, Pattinson has sought out increasingly challenging roles with some of the world’s best filmmakers. Here, Denis uses both the beauty and the enigma he presents to the camera to electric effect.

Ticket information here